Water Temperature of Lake Michigan Near Chicago, IL

Current Water Temperature

73.2°F

Measurement Time: Monday, July 21, 2025, 10:40 PM CDT

Temperature Locations

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Local Points of Interest

Glencoe, IL; Winnetka, IL; Wilmette, IL; Evanston, IL

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Lake Michigan

Station Name: Chicago Buoy
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet / 175 meters

Nearest Address:
Offshore
Chicago, IL 60093
Cook County

GPS Coordinates: 41.892, -87.563

Nearby Water Temperatures

Chicago River, Chicago, IL (7.3 mi)
Grand Calumet River, Chicago, IL (16.7 mi)
Cal-Sag Channel, Blue Island, IL (17.4 mi)
Lake Michigan, Wilmette, IL (17.4 mi)
Indiana Harbor Canal, East Chicago, IN (17.5 mi)
Grand Calumet River, Hammond, IN (19.2 mi)
Hart Ditch, Munster, IN (23.3 mi)
Little Calumet River, Gary, IN (24.3 mi)
Deep River, Lake Station, IN (26.3 mi)
Plum Creek, Dyer, IN (26.7 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (30.9 mi)
Des Plaines River, Lockport, IL (34.7 mi)
Lake Michigan, Waukegan, IL (35.0 mi)
Des Plaines River, Joliet, IL (36.4 mi)
Des Plaines River, Rockdale, IL (39.0 mi)

Weather Near Chicago, Illinois

Current Weather

73°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 76%
Feels Like: 77.1°F
Wind: ESE 4.3 mph
Wind Gusts: 7.5 mph
Pressure: 30.05 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Tue
H: 87°F
L: 71°F
Patchy rain nearby
Wed
H: 95°F
L: 72°F
Sunny
Thu
H: 95°F
L: 79°F
Heavy rain
Fri
H: 86°F
L: 72°F
Moderate rain
Sat
H: 87°F
L: 73°F

Air Quality

PM2.5: 14.06 μg/m3
PM10: 14.25 μg/m3
Carbon Monoxide: 486.55 μg/m3
Nitrogen Dioxide: 23.31 μg/m3
Sulphur Dioxide: 5.92 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:56 AM
Sunset: 8:18 PM
Daylight: 14 hrs 44 mins
Moonrise: 2:41 AM
Moon Transit: 10:57 AM
Moonset: 7:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:27 AM - 12:57 AM

Minor Periods

6:41 PM - 8:11 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Extreme Heat Watch issued July 21 at 8:19PM CDT until July 24 at 10:00PM CDT by NWS Chicago IL

Effective: Mon July 21, 2025, 8:19 PM
Expires: Tue July 22, 2025, 6:30 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 110 possible. * WHERE...Central Cook, Northern Cook, and Southern Cook Counties. * WHEN...From Wednesday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Watch issued July 21 at 8:19PM CDT until July 24 at 10:00PM CDT by NWS Chicago IL

Effective: Mon July 21, 2025, 8:19 PM
Expires: Tue July 22, 2025, 6:30 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 115 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois. * WHEN...From Wednesday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Watch issued July 21 at 8:19PM CDT until July 24 at 10:00PM CDT by NWS Chicago IL

Effective: Mon July 21, 2025, 8:19 PM
Expires: Tue July 22, 2025, 6:30 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 115 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois. * WHEN...From Wednesday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Watch issued July 21 at 8:19PM CDT until July 24 at 10:00PM CDT by NWS Chicago IL

Effective: Mon July 21, 2025, 8:19 PM
Expires: Tue July 22, 2025, 6:30 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 115 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois. * WHEN...From Wednesday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Extreme Heat Watch issued July 21 at 8:19PM CDT until July 24 at 10:00PM CDT by NWS Chicago IL

Effective: Mon July 21, 2025, 8:19 PM
Expires: Tue July 22, 2025, 6:30 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 115 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois. * WHEN...From Wednesday morning through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Tuesday, July 22, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 78.2°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 21.51 μg/m3
PM10: 21.65 μg/m3
Carbon Monoxide: 505.27 μg/m3
Nitrogen Dioxide: 22.39 μg/m3
Sulphur Dioxide: 7.38 μg/m3
Ozone: 99.32 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:56 AM
Sunset: 8:18 PM
Daylight: 14 hrs 44 mins
Moonrise: 2:41 AM
Moon Transit: 10:57 AM
Moonset: 7:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:27 AM - 12:57 AM

Minor Periods

6:41 PM - 8:11 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Wednesday, July 23, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 82.8°F
Average Humidity: 70%
Chance of Rain: 86%
Wind: 12.3 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 25.77 μg/m3
PM10: 26.17 μg/m3
Carbon Monoxide: 402.71 μg/m3
Nitrogen Dioxide: 24.68 μg/m3
Sulphur Dioxide: 14.5 μg/m3
Ozone: 122.08 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:56 AM
Sunset: 8:18 PM
Daylight: 14 hrs 42 mins
Moonrise: 3:48 AM
Moon Transit: 12:00 AM
Moonset: 8:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

7:31 PM - 9:01 PM
3:18 AM - 4:48 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 86.7°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 2.5

Air Quality

AQI: 2 - Moderate
PM2.5: 26.25 μg/m3
PM10: 27.65 μg/m3
Carbon Monoxide: 322.71 μg/m3
Nitrogen Dioxide: 20.96 μg/m3
Sulphur Dioxide: 15.66 μg/m3
Ozone: 130.2 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:56 AM
Sunset: 8:17 PM
Daylight: 14 hrs 40 mins
Moonrise: 5:03 AM
Moon Transit: 12:57 AM
Moonset: 8:40 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:27 AM - 2:57 PM

Minor Periods

8:10 PM - 9:40 PM
4:33 AM - 6:03 AM

Action Rating: 5 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 78.4°F
Average Humidity: 84%
Chance of Rain: 89%
Wind: 5.6 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 21.29 μg/m3
PM10: 22.94 μg/m3
Carbon Monoxide: 431.19 μg/m3
Nitrogen Dioxide: 39.58 μg/m3
Sulphur Dioxide: 11 μg/m3
Ozone: 94.31 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:56 AM
Sunset: 8:16 PM
Daylight: 14 hrs 38 mins
Moonrise: 6:18 AM
Moon Transit: 1:51 PM
Moonset: 9:10 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
1:21 PM - 3:51 PM

Minor Periods

8:40 PM - 10:10 PM
5:48 AM - 7:18 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 77.8°F
Average Humidity: 84%
Chance of Rain: 89%
Wind: 9.2 mph
UV Index: 0.1

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:56 AM
Sunset: 8:15 PM
Daylight: 14 hrs 36 mins
Moonrise: 7:31 AM
Moon Transit: 2:39 PM
Moonset: 9:34 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

2:06 AM - 4:36 AM
2:09 PM - 4:39 PM

Minor Periods

9:04 PM - 10:34 PM
7:01 AM - 8:31 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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