Station Name: Winthrop Harbor Buoy, IL
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet

Nearest Address:
Offshore
Winthrop Harbor, IL 60096
Lake County

GPS Coordinates: 42.491, -87.779

Nearby Water Temperatures

Extreme Cold Watch issued January 22 at 12:03AM CST until January 23 at 12:00PM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 12:03 AM
Expires: Thu January 22, 2026, 10:15 AM

* WHAT...Dangerously cold wind chills as low as 35 below possible. * WHERE...Portions of north central and northeast Illinois. * WHEN...From late tonight through Friday morning. * IMPACTS...The dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. 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.

Extreme Cold Warning issued January 22 at 3:12AM CST until January 23 at 12:00PM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 3:12 AM
Expires: Thu January 22, 2026, 1:15 PM

* WHAT...Dangerously cold wind chills between 30 and 40 below expected. * WHERE...Portions of central, north central, and northeast Illinois. * WHEN...From 3 AM to noon CST Friday. * IMPACTS...Dangerously cold wind chills as low as 35 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Coldest wind chills are expected across interior portions of northern Illinois.

Dress in layers including a hat, face mask, and gloves if you must go outside. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors.

Extreme Cold Warning issued January 22 at 11:24AM CST until January 23 at 12:00PM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 11:24 AM
Expires: Thu January 22, 2026, 9:30 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 40 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 15 to 30 below expected. * WHERE...Portions of central, north central, and northeast Illinois. * WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday. For the Cold Weather Advisory, from noon Friday to 9 AM CST Saturday. * IMPACTS...Dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Coldest wind chills are expected across interior portions of northern Illinois.

Dress in layers including a hat, face mask, and gloves if you must go outside. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors.

Cold Weather Advisory issued January 22 at 11:24AM CST until January 24 at 9:00AM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 11:24 AM
Expires: Thu January 22, 2026, 9:30 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 40 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 15 to 30 below expected. * WHERE...Portions of central, north central, and northeast Illinois. * WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday. For the Cold Weather Advisory, from noon Friday to 9 AM CST Saturday. * IMPACTS...Dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Coldest wind chills are expected across interior portions of northern Illinois.

Dress in layers including a hat, face mask, and gloves if you must go outside. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors.

Extreme Cold Warning issued January 22 at 3:17AM CST until January 23 at 1:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Thu January 22, 2026, 3:17 AM
Expires: Thu January 22, 2026, 11:30 AM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 34 below to 42 below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 30 below zero possible. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, from midnight tonight to 1 PM CST Friday. For the Extreme Cold Watch, from Friday afternoon through Saturday morning. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.

Extreme Cold Watch issued January 22 at 3:17AM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Thu January 22, 2026, 3:17 AM
Expires: Thu January 22, 2026, 11:30 AM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 34 below to 42 below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 30 below zero possible. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, from midnight tonight to 1 PM CST Friday. For the Extreme Cold Watch, from Friday afternoon through Saturday morning. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.

Cold Weather Advisory issued January 22 at 10:14AM CST until January 24 at 12:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Thu January 22, 2026, 10:14 AM
Expires: Thu January 22, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 35 to 42 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, from midnight tonight to 1 PM CST Friday. For the Cold Weather Advisory, from 1 PM Friday to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.

Extreme Cold Warning issued January 22 at 10:14AM CST until January 23 at 1:00PM CST by NWS Milwaukee/Sullivan WI

Effective: Thu January 22, 2026, 10:14 AM
Expires: Thu January 22, 2026, 6:15 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 35 to 42 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 20 to 29 below zero expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...For the Extreme Cold Warning, from midnight tonight to 1 PM CST Friday. For the Cold Weather Advisory, from 1 PM Friday to noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside.

Extreme Cold Warning issued January 22 at 3:12AM CST until January 23 at 12:00PM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 3:12 AM
Expires: Thu January 22, 2026, 1:15 PM

* WHAT...Dangerously cold wind chills as low as 30 below expected. * WHERE...Central Cook County. * WHEN...From 3 AM to noon CST Friday. * IMPACTS...The dangerously cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Residents of the city of Chicago can call 3 1 1 to request well being checks for elderly friends or family members, or for information on finding the nearest warming center. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible.

Extreme Cold Warning issued January 22 at 11:24AM CST until January 23 at 12:00PM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 11:24 AM
Expires: Thu January 22, 2026, 9:30 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 35 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 15 to 30 below expected. * WHERE...Central Cook County. * WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday. For the Cold Weather Advisory, from noon Friday to 9 AM CST Saturday. * IMPACTS...Dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Residents of the city of Chicago can call 3 1 1 to request well being checks for elderly friends or family members, or for information on finding the nearest warming center. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible.

Cold Weather Advisory issued January 22 at 11:24AM CST until January 24 at 9:00AM CST by NWS Chicago IL

Effective: Thu January 22, 2026, 11:24 AM
Expires: Thu January 22, 2026, 9:30 PM

* WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 30 to 35 below zero expected. For the Cold Weather Advisory, very cold wind chills as low as 15 to 30 below expected. * WHERE...Central Cook County. * WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday. For the Cold Weather Advisory, from noon Friday to 9 AM CST Saturday. * IMPACTS...Dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Residents of the city of Chicago can call 3 1 1 to request well being checks for elderly friends or family members, or for information on finding the nearest warming center. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. Keep pets indoors as much as possible.