Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

80.2°F

Measurement Time: Tuesday, July 21, 2026, 5:30 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

70°F
Overcast
Overcast
70°F
65.3°F
71%
N 13.2 mph
17.1 mph
65.3°F
57°F
0 in
100%
9 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 72°F
L: 60°F
Sunny
Thu
H: 77°F
L: 61°F
Sunny
Fri
H: 79°F
L: 66°F
Sunny
Sat
H: 78°F
L: 65°F
Sunny
Sun
H: 89°F
L: 73°F

Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.8 μg/m3
Carbon Monoxide: 96 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 76 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

Small Craft Advisory issued July 21 at 2:39PM CDT until July 23 at 4:00AM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 2:39 PM
Expires: Tue July 21, 2026, 10:45 PM

* WHAT...North winds to 25 kt this evening with significant waves to 10 ft occasionally to 13 ft on Wednesday expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 21 at 9:03PM CDT until July 23 at 4:00AM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:03 PM
Expires: Wed July 22, 2026, 5:15 AM

* WHAT...North winds to 25 kt and significant waves to 9 ft occasionally to 12 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Beach Hazards Statement issued July 21 at 9:03PM CDT until July 23 at 7:00AM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:03 PM
Expires: Wed July 22, 2026, 5:15 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 6 to 9 ft expected. * WHERE...Lake IN and Porter Counties. * WHEN...Through Thursday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.
Wednesday, July 22, 2026

Weather Forecast

Sunny
72.1°F
59.9°F
67°F
59%
0 in
4%
0%
14.5 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 5.49 μg/m3
Carbon Monoxide: 103.08 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 84.5 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
77.4°F
60.8°F
70.1°F
49%
0 in
3%
0%
7.6 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 13.48 μg/m3
PM10: 13.83 μg/m3
Carbon Monoxide: 174.08 μg/m3
Nitrogen Dioxide: 15.7 μg/m3
Sulphur Dioxide: 4.59 μg/m3
Ozone: 84.54 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
79.1°F
65.9°F
72.9°F
53%
0 in
3%
0%
8.1 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.98 μg/m3
PM10: 10.3 μg/m3
Carbon Monoxide: 178.92 μg/m3
Nitrogen Dioxide: 15.61 μg/m3
Sulphur Dioxide: 5.21 μg/m3
Ozone: 85.38 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

Saturday, July 25, 2026

Weather Forecast

Sunny
78.1°F
64.5°F
71°F
76%
0 in
21%
0%
10.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 9.94 μg/m3
PM10: 10.23 μg/m3
Carbon Monoxide: 174.2 μg/m3
Nitrogen Dioxide: 12.38 μg/m3
Sulphur Dioxide: 4.14 μg/m3
Ozone: 107.79 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:57 AM
Sunset: 8:16 PM
Daylight: 14 hrs 39 mins
Moonrise: 5:58 PM
Moon Transit: 10:11 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
12:00 AM - 12:00 AM

Minor Periods

5:28 PM - 6:58 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
88.8°F
72.9°F
80.4°F
76%
0.05 in
57%
0%
12.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.78 μg/m3
PM10: 10.03 μg/m3
Carbon Monoxide: 230.63 μg/m3
Nitrogen Dioxide: 16.04 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 76.25 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:57 AM
Sunset: 8:15 PM
Daylight: 14 hrs 37 mins
Moonrise: 6:47 PM
Moon Transit: 11:03 PM
Moonset: 2:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:26 AM - 12:56 AM
12:00 AM - 12:00 AM

Minor Periods

6:17 PM - 7:47 PM
1:56 AM - 3:26 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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