Station Name: ST JOHNS RIVER BL MARCO LK AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
1799 River Rd
Jacksonville, FL 32207
Duval County

GPS Coordinates: 30.30478056, -81.6601

Nearby Water Temperatures

Extreme Cold Warning issued January 31 at 12:48PM EST until February 1 at 10:00AM EST by NWS Jacksonville FL

Effective: Sat January 31, 2026, 12:48 PM
Expires: Sun February 1, 2026, 3:30 AM

* WHAT...For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 45 mph expected. For the Freeze Warning, a hard freeze with temperatures as low as 21 expected. For the Extreme Cold Warning, dangerously cold wind chills as low as 8 above expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...For the Wind Advisory, until 7 AM EST Sunday. For the Freeze Warning, from 7 PM this evening to 11 AM EST Sunday. For the Extreme Cold Warning, from 9 PM this evening to 10 AM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 10 above zero could cause frostbite on exposed skin in as little as 30 minutes. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Take steps now to protect tender plants from the cold.

Freeze Warning issued January 31 at 12:48PM EST until February 1 at 11:00AM EST by NWS Jacksonville FL

Effective: Sat January 31, 2026, 12:48 PM
Expires: Sun February 1, 2026, 3:30 AM

* WHAT...For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 45 mph expected. For the Freeze Warning, a hard freeze with temperatures as low as 21 expected. For the Extreme Cold Warning, dangerously cold wind chills as low as 8 above expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...For the Wind Advisory, until 7 AM EST Sunday. For the Freeze Warning, from 7 PM this evening to 11 AM EST Sunday. For the Extreme Cold Warning, from 9 PM this evening to 10 AM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 10 above zero could cause frostbite on exposed skin in as little as 30 minutes. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Take steps now to protect tender plants from the cold.

Wind Advisory issued January 31 at 12:48PM EST until February 1 at 7:00AM EST by NWS Jacksonville FL

Effective: Sat January 31, 2026, 12:48 PM
Expires: Sun February 1, 2026, 3:30 AM

* WHAT...For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 45 mph expected. For the Freeze Warning, a hard freeze with temperatures as low as 21 expected. For the Extreme Cold Warning, dangerously cold wind chills as low as 8 above expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...For the Wind Advisory, until 7 AM EST Sunday. For the Freeze Warning, from 7 PM this evening to 11 AM EST Sunday. For the Extreme Cold Warning, from 9 PM this evening to 10 AM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 10 above zero could cause frostbite on exposed skin in as little as 30 minutes. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Take steps now to protect tender plants from the cold.

Freeze Warning issued February 1 at 12:28AM EST until February 1 at 11:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 18. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the second Freeze Warning, sub-freezing temperatures as low as 21 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the Wind Advisory, until 7 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Cold Weather Advisory issued February 1 at 12:28AM EST until February 2 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 18. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the second Freeze Warning, sub-freezing temperatures as low as 21 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the Wind Advisory, until 7 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Freeze Warning issued February 1 at 12:28AM EST until February 2 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 18. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the second Freeze Warning, sub-freezing temperatures as low as 21 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the Wind Advisory, until 7 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Wind Advisory issued February 1 at 12:28AM EST until February 1 at 7:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 18. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the second Freeze Warning, sub-freezing temperatures as low as 21 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the Wind Advisory, until 7 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Extreme Cold Warning issued February 1 at 12:28AM EST until February 1 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 18. For the Wind Advisory, northwest winds 15 to 25 mph with gusts up to 40 mph. For the second Freeze Warning, sub-freezing temperatures as low as 21 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the Wind Advisory, until 7 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Freeze Warning issued February 1 at 12:28AM EST until February 1 at 11:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 17. For the second Freeze Warning, sub-freezing temperatures as low as 20 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Freeze Warning issued February 1 at 12:28AM EST until February 2 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 17. For the second Freeze Warning, sub-freezing temperatures as low as 20 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Cold Weather Advisory issued February 1 at 12:28AM EST until February 2 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 17. For the second Freeze Warning, sub-freezing temperatures as low as 20 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Extreme Cold Warning issued February 1 at 12:28AM EST until February 1 at 10:00AM EST by NWS Jacksonville FL

Effective: Sun February 1, 2026, 12:28 AM
Expires: Sun February 1, 2026, 4:00 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 3 above. For the first Freeze Warning, sub-freezing temperatures as low as 17. For the second Freeze Warning, sub-freezing temperatures as low as 20 expected. For the Cold Weather Advisory, very cold wind chills as low as 13 expected. * WHERE...Portions of northeast and northern Florida. * WHEN...For the Extreme Cold Warning, until 10 AM EST this morning. For the first Freeze Warning, until 11 AM EST this morning. For the second Freeze Warning and Cold Weather Advisory, from 7 PM this evening to 10 AM EST Monday. * IMPACTS...The dangerously cold wind chills as low as 5 above zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Dress in layers including a hat, face mask, and gloves if you must go outside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

Winter Weather Advisory issued January 31 at 12:44PM EST until February 1 at 1:00AM EST by NWS Jacksonville FL

Effective: Sat January 31, 2026, 12:44 PM
Expires: Sun February 1, 2026, 1:00 AM

* WHAT...Occasional snow showers expected. Total snow accumulations up to one inch. Winds gusting as high as 40 mph. * WHERE...A portion of southeast Georgia. * WHEN...Until 1 AM EST Sunday. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.