Water Temperature of the St. Johns River in Astor, FL
Current Water Temperature
Water feels warm and inviting. Safe for extended immersion with virtually no thermal fatigue.
Measurement Time: Friday, September 30, 2016, 7:45 PM EDT
Temperature Locations
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Local Points of Interest
Lake George; Lake Dexter; Volusia, FL; Lake George State ForestSponsored Content
Station Name: ST. JOHNS RIVER AT ASTOR, FL
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 16 feet
Nearest Address:
State Hwy 40
Astor, FL 32102
Volusia County
GPS Coordinates: 29.16692445, -81.5220157
Nearby Water Temperatures
St. Johns River, Deland, FL (13.8 mi)Blue Springs, Orange City, FL (18.9 mi)
St. Johns River, DeBary, FL (25.7 mi)
Rock Springs, Apopka, FL (28.3 mi)
St. Johns River, Palatka, FL (31.2 mi)
Silver River, Silver Springs, FL (31.5 mi)
Wekiwa Springs, Apopka, FL (31.6 mi)
St. Johns River, Palatka, FL (37.3 mi)
St. Johns River, Hastings, FL (43.8 mi)
Atlantic Ocean, St. Augustine, FL (50.1 mi)
S-405A Canal, Bay Lake, FL (51.4 mi)
Cypress Creek, Orlando, FL (53.6 mi)
Whittenhorse Creek, Horizon West, FL (54.3 mi)
Lake Buena Vista, Orlando, FL (54.8 mi)
St. Johns River, Green Cove Springs, FL (56.7 mi)
Weather for Astor, Florida
Current Weather

Humidity: 92%
Feels Like: 76.3°F
Wind: S 2.2 mph
Wind Gusts: 6.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Weather Forecast

Fri
H: 86°F
L: 70°F

Sat
H: 83°F
L: 65°F

Sun
H: 82°F
L: 62°F
Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Astronomical
Best Times for Fishing or Hunting
Major Periods
9:35 AM - 12:05 PM9:57 PM - 12:27 AM
Minor Periods
3:42 AM - 5:12 AM3:23 PM - 4:53 PM
Flood Warning issued November 5 at 8:59PM EST by NWS Melbourne FL
Effective: Thu November 5, 2026, 8:59 PM
Expires: Fri November 6, 2026, 11:00 AM
...The Flood Warning continues for the following rivers in Florida... St Johns River Near Astor affecting Lake and Volusia Counties. .Heavy rainfall that has occurred upstream will maintain river levels within Moderate flood stage through early next week as a large volume of rainwater works north through the basin. For the St. Johns River...including Astor...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...St Johns River near Astor. * WHEN...Until further notice. * IMPACTS...At 3.0 feet, Water approaches or may enter lowest homes on or near Wildhog Road and nearby canals. Flooding reaches the parking lot of the Juno Trail Apartments. Flooding on portions of Alligator Road and Holiday Road. Lowest lying yards along Blue Creek are flooded. Roads at Astor Landing Campground and Lake Dexter Boat Ramp begin to flood. Water enters lower homes closest to the river on McPherson Lane. * ADDITIONAL DETAILS... - At 8:30 PM EST Thursday the stage was 3.2 feet. - Bankfull stage is 2.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM EST Thursday was 3.3 feet. - Forecast...The river is expected to remain steady above flood stage at 3.2 feet. - Flood stage is 2.3 feet. - http://www.weather.gov/safety/flood
Flood Warning issued November 5 at 8:52PM EST by NWS Melbourne FL
Effective: Thu November 5, 2026, 8:52 PM
Expires: Fri November 6, 2026, 11:15 AM
...The Flood Warning continues for the following rivers in Florida... St Johns River Near Deland affecting Lake and Volusia Counties. .Heavy rainfall has caused the St. Johns River near Deland to rise into Minor flood stage. The River is forecast to slowly climb through Minor flood stage this weekend, potentially nearing Moderate flood stage next week. For the St. Johns River...including Deland...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...St Johns River near Deland. * WHEN...Until further notice. * IMPACTS...At 4.5 feet, Water moves into yards and approaches buildings around Hontoon Island. * ADDITIONAL DETAILS... - At 7:30 PM EST Thursday the stage was 4.0 feet. - Bankfull stage is 3.5 feet. - Forecast...The river is forecast to continue a slow rise through Minor flood stage reaching 4.5 feet on Tuesday. Additional rises are possible thereafter. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood
Weather Forecast
Average Temperature: 76.8°F
Average Humidity: 75%
Wind: 6.3 mph
UV Index: 5.8
Astronomical
Best Times for Fishing or Hunting
Major Periods
9:35 AM - 12:05 PM9:57 PM - 12:27 AM
Minor Periods
3:42 AM - 5:12 AM3:23 PM - 4:53 PM
Weather Forecast
Average Temperature: 72.2°F
Average Humidity: 66%
Wind: 5.6 mph
UV Index: 5.5
Astronomical
Best Times for Fishing or Hunting
Major Periods
10:20 AM - 12:50 PM10:42 PM - 1:12 AM
Minor Periods
4:40 AM - 6:10 AM3:54 PM - 5:24 PM
Weather Forecast
Average Temperature: 70.3°F
Average Humidity: 73%
Wind: 8.5 mph
UV Index: 5.4
Astronomical
Best Times for Fishing or Hunting
Major Periods
11:06 AM - 1:36 PM11:30 PM - 2:00 AM
Minor Periods
5:39 AM - 7:09 AM4:29 PM - 5:59 PM
