Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

66.9°F

Measurement Time: Wednesday, May 20, 2026, 12:00 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

50.6°F
Sunny
Sunny
46°F
50.6°F
51%
NNE 12.8 mph
14.9 mph
46°F
33.4°F
0 in
5%
6 mi
1026 mbar
0.8

Five Day Weather Forecast

Sunny
Wed
H: 53°F
L: 49°F
Sunny
Thu
H: 60°F
L: 49°F
Patchy rain nearby
Fri
H: 57°F
L: 51°F
Patchy rain nearby
Sat
H: 64°F
L: 52°F
Patchy rain nearby
Sun
H: 75°F
L: 60°F

Air Quality

PM2.5: 3.45 μg/m3
PM10: 3.65 μg/m3
Carbon Monoxide: 120.85 μg/m3
Nitrogen Dioxide: 12.15 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:47 AM
Sunset: 8:09 PM
Daylight: 14 hrs 43 mins
Moonrise: 8:59 AM
Moon Transit: 4:55 PM
Moonset: 12:57 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
4:25 PM - 6:55 PM

Minor Periods

8:29 AM - 9:59 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued May 20 at 10:31AM CDT until May 21 at 1:00PM CDT by NWS Chicago IL

Effective: Wed May 20, 2026, 10:31 AM
Expires: Wed May 20, 2026, 6:45 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 6 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Thursday afternoon. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

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


Beach Hazards Statement issued May 20 at 10:31AM CDT until May 21 at 10:00AM CDT by NWS Chicago IL

Effective: Wed May 20, 2026, 10:31 AM
Expires: Wed May 20, 2026, 6:45 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 6 ft expected. * WHERE...Lake County IN. * 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.


Beach Hazards Statement issued May 20 at 10:31AM CDT until May 21 at 7:00AM CDT by NWS Chicago IL

Effective: Wed May 20, 2026, 10:31 AM
Expires: Wed May 20, 2026, 6:45 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 6 ft expected. * WHERE...Porter County. * 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, May 20, 2026

Weather Forecast

Sunny
52.8°F
48.6°F
51.1°F
60%
0 in
0%
0%
13.9 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 3.77 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 133.01 μg/m3
Nitrogen Dioxide: 10.02 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 58.2 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:47 AM
Sunset: 8:09 PM
Daylight: 14 hrs 43 mins
Moonrise: 8:59 AM
Moon Transit: 4:55 PM
Moonset: 12:57 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
4:25 PM - 6:55 PM

Minor Periods

8:29 AM - 9:59 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 21, 2026

Weather Forecast

Sunny
59.9°F
48.5°F
54°F
62%
0 in
0%
0%
11.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 3.99 μg/m3
Carbon Monoxide: 127.69 μg/m3
Nitrogen Dioxide: 8.07 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 69.48 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:47 AM
Sunset: 8:10 PM
Daylight: 14 hrs 45 mins
Moonrise: 10:17 AM
Moon Transit: 5:51 PM
Moonset: 12:40 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
5:21 PM - 7:51 PM

Minor Periods

9:47 AM - 11:17 AM
12:10 AM - 1:40 AM

Action Rating: 4 out of 5

Friday, May 22, 2026

Weather Forecast

Patchy rain nearby
56.7°F
50.8°F
53.8°F
72%
0.1 in
65%
0%
11 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.14 μg/m3
PM10: 7.24 μg/m3
Carbon Monoxide: 172.53 μg/m3
Nitrogen Dioxide: 16.67 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 61.4 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:47 AM
Sunset: 8:11 PM
Daylight: 14 hrs 47 mins
Moonrise: 11:32 AM
Moon Transit: 6:42 PM
Moonset: 1:12 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:06 AM - 8:36 AM
6:12 PM - 8:42 PM

Minor Periods

11:02 AM - 12:32 AM
12:42 AM - 2:12 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
63.9°F
52.1°F
55.9°F
87%
0.05 in
85%
0%
9.2 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.5 μg/m3
PM10: 7.56 μg/m3
Carbon Monoxide: 213.16 μg/m3
Nitrogen Dioxide: 21.17 μg/m3
Sulphur Dioxide: 2.68 μg/m3
Ozone: 41 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:47 AM
Sunset: 8:12 PM
Daylight: 14 hrs 49 mins
Moonrise: 12:44 AM
Moon Transit: 7:28 PM
Moonset: 1:38 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
6:58 PM - 9:28 PM

Minor Periods

12:14 AM - 1:44 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
75.4°F
59.7°F
67.3°F
87%
0.13 in
71%
0%
10.3 mph
4


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: 5:23 AM
Sun Transit: 12:47 AM
Sunset: 8:13 PM
Daylight: 14 hrs 50 mins
Moonrise: 1:51 PM
Moon Transit: 8:11 PM
Moonset: 2:01 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:39 AM - 10:09 AM
7:41 PM - 10:11 PM

Minor Periods

1:21 PM - 2:51 PM
1:31 AM - 3:01 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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