Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

80.6°F

Measurement Time: Monday, July 20, 2026, 5:00 PM CDT

Temperature Locations

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Local Points of Interest

Chicago Park District

Chicago River

Station Name: CHICAGO S & S CANAL AT WESTERN AVE AT CHICAGO, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 591 feet

Nearest Address:
3101 S Western Ave
Chicago, IL 60608
Cook County

GPS Coordinates: 41.8375, -87.6852778

Nearby Water Temperatures

Lake Michigan, Chicago, IL (7.3 mi)
Cal-Sag Channel, Blue Island, IL (12.8 mi)
Grand Calumet River, Chicago, IL (14.4 mi)
Indiana Harbor Canal, East Chicago, IN (17.1 mi)
Grand Calumet River, Hammond, IN (17.9 mi)
Lake Michigan, Wilmette, IL (20.6 mi)
Hart Ditch, Munster, IN (21.8 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (23.6 mi)
Little Calumet River, Gary, IN (24 mi)
Plum Creek, Dyer, IN (24.5 mi)
Deep River, Lake Station, IN (27.4 mi)
Des Plaines River, Lockport, IL (27.4 mi)
Des Plaines River, Joliet, IL (29.2 mi)
Des Plaines River, Rockdale, IL (31.9 mi)
Lake Michigan, Waukegan, IL (37.1 mi)

Weather for Chicago, Illinois

Current Weather

77.4°F
Overcast
Overcast
82.1°F
78°F
79%
SW 11.9 mph
18 mph
74.1°F
70°F
0 in
50%
6 mi
1006 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 89°F
L: 64°F
Patchy rain nearby
Tue
H: 88°F
L: 68°F
Patchy rain nearby
Wed
H: 70°F
L: 62°F
Sunny
Thu
H: 76°F
L: 61°F
Sunny
Fri
H: 77°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 13.6 μg/m3
PM10: 13.7 μg/m3
Carbon Monoxide: 227 μg/m3
Nitrogen Dioxide: 11.3 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:57 AM
Sunset: 8:21 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:46 AM
Moon Transit: 6:12 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:40 AM - 8:10 AM
5:42 PM - 8:12 PM

Minor Periods

12:16 AM - 1:46 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Small Craft Advisory issued July 20 at 8:37PM CDT until July 21 at 6:00AM CDT by NWS Chicago IL

Effective: Mon July 20, 2026, 8:37 PM
Expires: Tue July 21, 2026, 4:45 AM

* WHAT...Southwest winds to 25 kt expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 6 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, July 20, 2026

Weather Forecast

Sunny
88.7°F
64.4°F
74.6°F
74%
0.04 in
39%
0%
16.3 mph
7.2


Air Quality

AQI: 2 - Moderate
PM2.5: 24.97 μg/m3
PM10: 25.28 μg/m3
Carbon Monoxide: 261.25 μg/m3
Nitrogen Dioxide: 12.72 μg/m3
Sulphur Dioxide: 4.4 μg/m3
Ozone: 109.17 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:57 AM
Sunset: 8:21 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:46 AM
Moon Transit: 6:12 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:40 AM - 8:10 AM
5:42 PM - 8:12 PM

Minor Periods

12:16 AM - 1:46 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Patchy rain nearby
88.3°F
67.5°F
75.8°F
72%
0.04 in
45%
0%
18.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 5.33 μg/m3
PM10: 5.48 μg/m3
Carbon Monoxide: 160.63 μg/m3
Nitrogen Dioxide: 5.31 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 88.25 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:57 AM
Sunset: 8:20 PM
Daylight: 14 hrs 46 mins
Moonrise: 1:51 PM
Moon Transit: 6:56 PM
Moonset: 12:31 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
6:26 PM - 8:56 PM

Minor Periods

1:21 PM - 2:51 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Patchy rain nearby
69.9°F
62.1°F
66.3°F
57%
0.01 in
36%
0%
15.4 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 5.47 μg/m3
PM10: 5.67 μg/m3
Carbon Monoxide: 111.33 μg/m3
Nitrogen Dioxide: 3.74 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 88.63 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:57 AM
Sunset: 8:19 PM
Daylight: 14 hrs 44 mins
Moonrise: 2:56 PM
Moon Transit: 7:42 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
7:12 PM - 9:42 PM

Minor Periods

2:26 PM - 3:56 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
76.3°F
60.7°F
69.4°F
52%
0 in
4%
0%
7.6 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 11 μg/m3
PM10: 11.22 μg/m3
Carbon Monoxide: 117.96 μg/m3
Nitrogen Dioxide: 12.78 μg/m3
Sulphur Dioxide: 4.54 μg/m3
Ozone: 89.13 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 42 mins
Moonrise: 4:00 PM
Moon Transit: 8:30 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
8:00 PM - 10:30 PM

Minor Periods

3:30 PM - 5:00 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
77.2°F
66.4°F
71.7°F
59%
0 in
7%
0%
7.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 10.1 μg/m3
PM10: 10.36 μg/m3
Carbon Monoxide: 172.95 μg/m3
Nitrogen Dioxide: 15.17 μg/m3
Sulphur Dioxide: 3.94 μg/m3
Ozone: 90.17 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:57 AM
Sunset: 8:17 PM
Daylight: 14 hrs 40 mins
Moonrise: 5:02 PM
Moon Transit: 9:20 PM
Moonset: 12:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
8:50 PM - 11:20 PM

Minor Periods

4:32 PM - 6:02 PM
12:26 AM - 1:56 AM

Action Rating: 2 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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