Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

58.1°F

Measurement Time: Friday, May 1, 2026, 3:00 AM 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

44.1°F
Partly cloudy
Partly cloudy
38.2°F
44.1°F
73%
N 11.2 mph
13.1 mph
39.8°F
36.6°F
0 in
75%
9 mi
1017 mbar
1.5

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 48°F
L: 39°F
Cloudy
Sat
H: 47°F
L: 40°F
Patchy rain nearby
Sun
H: 60°F
L: 43°F
Patchy rain nearby
Mon
H: 70°F
L: 52°F
Patchy rain nearby
Tue
H: 53°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 7.85 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:47 AM
Sunset: 7:49 PM
Daylight: 14 hrs 3 mins
Moonrise: 8:17 PM
Moon Transit: 12:19 AM
Moonset: 5:19 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:31 AM - 3:01 PM

Minor Periods

7:47 PM - 9:17 PM
4:49 AM - 6:19 AM

Action Rating: 4 out of 5

Frost Advisory issued May 1 at 3:32AM CDT until May 2 at 8:00AM CDT by NWS Chicago IL

Effective: Fri May 1, 2026, 3:32 AM
Expires: Fri May 1, 2026, 1:45 PM

* WHAT...Temperatures as low as 31 degrees Fahrenheit will result in frost formation. * WHERE...Portions of east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Flood Warning issued April 30 at 3:07PM CDT until May 3 at 7:00AM CDT by NWS Chicago IL

Effective: Thu April 30, 2026, 3:07 PM
Expires: Sun May 3, 2026, 7:00 AM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until Sunday. * IMPACTS...Multiple roads, yards, and areas of park land are flooding along the Fox River Chain of Lakes. Flooding is expected to continue until this weekend. * ADDITIONAL DETAILS... - At 304 PM CDT, River gauges along the Fox River Chain of Lakes indicated that water levels continue to slowly fall. - The latest forecast from the Illinois Department of Natural Resources indicates that water levels should fall to near flood stage by this weekend. - Some locations that will experience flooding include areas along the Fox River Chain of Lakes, including Nippersink Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie, Channel Lake, and Lake Catherine. - http://www.weather.gov/safety/flood


Flood Warning issued April 30 at 8:57PM CDT until May 5 at 1:00AM CDT by NWS Chicago IL

Effective: Thu April 30, 2026, 8:57 PM
Expires: Fri May 1, 2026, 3:00 PM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue and Corey Street south of East Dundee. Lincoln Avenue threatened in West Dundee. Filip Street and Fox River Drive threatened in Algonquin. Fox River Trail threatened south of downtown Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Thursday the stage was 11.0 feet. - Forecast...The river is expected to continue a gradual fall. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.


Friday, May 1, 2026

Weather Forecast

Patchy rain nearby
47.5°F
38.5°F
43.1°F
74%
0.06 in
88%
0%
12.1 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 11.63 μg/m3
PM10: 12.45 μg/m3
Carbon Monoxide: 154.77 μg/m3
Nitrogen Dioxide: 13.21 μg/m3
Sulphur Dioxide: 4.32 μg/m3
Ozone: 79.32 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:47 AM
Sunset: 7:49 PM
Daylight: 14 hrs 3 mins
Moonrise: 8:17 PM
Moon Transit: 12:19 AM
Moonset: 5:19 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:31 AM - 3:01 PM

Minor Periods

7:47 PM - 9:17 PM
4:49 AM - 6:19 AM

Action Rating: 4 out of 5

Saturday, May 2, 2026

Weather Forecast

Cloudy
47.4°F
40°F
43.5°F
59%
0 in
0%
0%
8.5 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 8.72 μg/m3
PM10: 9.75 μg/m3
Carbon Monoxide: 163.97 μg/m3
Nitrogen Dioxide: 11.99 μg/m3
Sulphur Dioxide: 5.32 μg/m3
Ozone: 74.84 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:47 AM
Sunset: 7:50 PM
Daylight: 14 hrs 5 mins
Moonrise: 9:21 PM
Moon Transit: 1:05 AM
Moonset: 5:47 AM
Moon Phase: Full
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
1:18 PM - 3:48 PM

Minor Periods

8:51 PM - 10:21 PM
5:17 AM - 6:47 AM

Action Rating: 4 out of 5

Sunday, May 3, 2026

Weather Forecast

Patchy rain nearby
60°F
42.7°F
52.1°F
58%
0.02 in
83%
0%
15.2 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 8.72 μg/m3
PM10: 9.74 μg/m3
Carbon Monoxide: 197.21 μg/m3
Nitrogen Dioxide: 17.15 μg/m3
Sulphur Dioxide: 4.61 μg/m3
Ozone: 71.48 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 12:47 AM
Sunset: 7:52 PM
Daylight: 14 hrs 7 mins
Moonrise: 10:24 PM
Moon Transit: 1:53 AM
Moonset: 6:20 AM
Moon Phase: Full
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

1:23 AM - 3:53 AM
2:07 PM - 4:37 PM

Minor Periods

9:54 PM - 11:24 PM
5:50 AM - 7:20 AM

Action Rating: 4 out of 5

Monday, May 4, 2026

Weather Forecast

Patchy rain nearby
70.3°F
51.8°F
59.3°F
77%
0.2 in
89%
0%
18.8 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 11.84 μg/m3
PM10: 12.79 μg/m3
Carbon Monoxide: 180.59 μg/m3
Nitrogen Dioxide: 16.55 μg/m3
Sulphur Dioxide: 4.46 μg/m3
Ozone: 75.32 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:47 AM
Sunset: 7:53 PM
Daylight: 14 hrs 10 mins
Moonrise: 11:20 PM
Moon Transit: 2:43 AM
Moonset: 7:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
2:57 PM - 5:27 PM

Minor Periods

12:00 AM - 12:00 AM
6:30 AM - 8:00 AM

Action Rating: 2 out of 5

Tuesday, May 5, 2026

Weather Forecast

Patchy rain nearby
53°F
45.2°F
48.8°F
62%
0.06 in
80%
0%
12.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.79 μg/m3
Carbon Monoxide: 173.45 μg/m3
Nitrogen Dioxide: 14.89 μg/m3
Sulphur Dioxide: 3.53 μg/m3
Ozone: 74.62 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:47 AM
Sunset: 7:54 PM
Daylight: 14 hrs 12 mins
Moonrise: 12:20 AM
Moon Transit: 3:34 AM
Moonset: 7:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
3:49 PM - 6:19 PM

Minor Periods

7:18 AM - 8:48 AM
12:00 AM - 12:00 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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