Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

71.1°F

Measurement Time: Sunday, August 2, 2026, 1:00 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

68.7°F
Sunny
Sunny
65.3°F
68.7°F
84%
NE 14.3 mph
19.8 mph
68.7°F
63.6°F
0 in
1%
6 mi
1009 mbar
0.3

Five Day Weather Forecast

Sunny
Sun
H: 74°F
L: 68°F
Sunny
Mon
H: 76°F
L: 67°F
Sunny
Tue
H: 81°F
L: 66°F
Sunny
Wed
H: 83°F
L: 70°F
Sunny
Thu
H: 84°F
L: 67°F

Air Quality

AQI: 1 - Good
PM2.5: 16.6 μg/m3
PM10: 17.1 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 3.1 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:57 AM
Sunset: 8:08 PM
Daylight: 14 hrs 22 mins
Moonrise: 9:58 PM
Moon Transit: 3:39 AM
Moonset: 9:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

3:09 AM - 5:39 AM
5:20 PM - 7:50 PM

Minor Periods

9:28 PM - 10:58 PM
9:23 AM - 10:53 AM

Action Rating: 4 out of 5

Flood Warning issued August 1 at 11:37PM CDT until August 2 at 11:00AM CDT by NWS Chicago IL

Effective: Sat August 1, 2026, 11:37 PM
Expires: Sun August 2, 2026, 11:00 AM

* WHAT...Flooding caused by excessive rainfall will continue. * WHERE...Southeastern Cook County in northeastern Illinois... Central Will County in northeastern Illinois... Northwestern Lake IN County in northwestern Indiana... * WHEN...Until 1100 AM CDT Sunday. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Slow moving or standing water may continue. High water may only slowly recede from flooded areas. * ADDITIONAL DETAILS... - At 1133 PM CDT, gauges on area creeks, streams, and rivers indicated ongoing flooding from earlier excessive rainfall in the warned area. - Some locations that will experience flooding include... Hammond, Gary, Tinley Park, Calumet City, Chicago Heights, East Chicago, Lansing, Oak Forest, Harvey, Highland, Munster, Dolton, Park Forest, Homewood, Matteson, Mokena, Frankfort, Steger, and South Holland. - http://www.weather.gov/safety/flood

A Flood Warning means flooding is imminent or may already be occurring. Persons along rivers, creeks, and other waterways should take immediate precautions to protect life and property. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Flood Warning issued August 2 at 4:04AM CDT until August 2 at 11:00AM CDT by NWS Chicago IL

Effective: Sun August 2, 2026, 4:04 AM
Expires: Sun August 2, 2026, 11:00 AM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Southeastern Cook County in northeastern Illinois... Central Will County in northeastern Illinois... Northwestern Lake IN County in northwestern Indiana... * WHEN...Until 1100 AM CDT Sunday. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Slow moving or standing water may continue. High water may only slowly recede from flooded areas. * ADDITIONAL DETAILS... - At 402 AM CDT, gauges on area creeks, streams, and rivers indicated ongoing flooding from earlier excessive rainfall in the warned area. - Some locations that will experience flooding include... Hammond, Gary, Tinley Park, Calumet City, Chicago Heights, East Chicago, Lansing, Oak Forest, Harvey, Highland, Munster, Dolton, Park Forest, Homewood, Matteson, Mokena, Frankfort, Steger, and South Holland. - http://www.weather.gov/safety/flood

A Flood Warning means flooding is imminent or may already be occurring. Persons along rivers, creeks, and other waterways should take immediate precautions to protect life and property. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.


Small Craft Advisory issued August 1 at 9:48PM CDT until August 3 at 3:00AM CDT by NWS Chicago IL

Effective: Sat August 1, 2026, 9:48 PM
Expires: Sun August 2, 2026, 6:00 AM

* WHAT...Northeast winds to 30 kt and significant waves to 9 ft occasionally to 12 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 3 AM CDT Monday. * 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 August 2 at 3:09AM CDT until August 3 at 3:00AM CDT by NWS Chicago IL

Effective: Sun August 2, 2026, 3:09 AM
Expires: Sun August 2, 2026, 11:15 AM

* WHAT...North winds to 25 kt and significant waves to 8 ft occasionally to 10 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 3 AM CDT Monday. * 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 August 1 at 10:07PM CDT until August 3 at 9:00AM CDT by NWS Chicago IL

Effective: Sat August 1, 2026, 10:07 PM
Expires: Sun August 2, 2026, 6:15 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 5 to 8 ft expected. * WHERE...Lake IN and Porter Counties. * WHEN...Through Monday 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.


Sunday, August 2, 2026

Weather Forecast

Sunny
73.6°F
67.8°F
70.4°F
84%
0 in
13%
0%
16.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 11.86 μg/m3
PM10: 12.2 μg/m3
Carbon Monoxide: 137.13 μg/m3
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 82.58 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:57 AM
Sunset: 8:08 PM
Daylight: 14 hrs 22 mins
Moonrise: 9:58 PM
Moon Transit: 3:39 AM
Moonset: 9:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

3:09 AM - 5:39 AM
5:20 PM - 7:50 PM

Minor Periods

9:28 PM - 10:58 PM
9:23 AM - 10:53 AM

Action Rating: 4 out of 5

Monday, August 3, 2026

Weather Forecast

Sunny
76.1°F
66.7°F
71.2°F
70%
0 in
6%
0%
10.5 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 8.33 μg/m3
PM10: 8.49 μg/m3
Carbon Monoxide: 127.63 μg/m3
Nitrogen Dioxide: 11.05 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 68.38 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:56 AM
Sunset: 8:07 PM
Daylight: 14 hrs 20 mins
Moonrise: 10:20 PM
Moon Transit: 12:00 AM
Moonset: 11:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:34 PM - 7:04 PM

Minor Periods

9:50 PM - 11:20 PM
10:31 AM - 12:01 AM

Action Rating: 2 out of 5

Tuesday, August 4, 2026

Weather Forecast

Sunny
81.4°F
66.4°F
74.3°F
65%
0 in
4%
0%
7.2 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 11.8 μg/m3
PM10: 11.93 μg/m3
Carbon Monoxide: 211.21 μg/m3
Nitrogen Dioxide: 18.49 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 79.58 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:56 AM
Sunset: 8:05 PM
Daylight: 14 hrs 18 mins
Moonrise: 10:45 PM
Moon Transit: 5:08 AM
Moonset: 12:12 AM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

4:38 AM - 7:08 AM
5:22 PM - 7:52 PM

Minor Periods

10:15 PM - 11:45 PM
11:42 AM - 1:12 PM

Action Rating: 3 out of 5

Wednesday, August 5, 2026

Weather Forecast

Sunny
82.8°F
69.6°F
76.1°F
68%
0.14 in
58%
0%
6.5 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 11.91 μg/m3
PM10: 12.17 μg/m3
Carbon Monoxide: 222.97 μg/m3
Nitrogen Dioxide: 15.58 μg/m3
Sulphur Dioxide: 2.98 μg/m3
Ozone: 84.42 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:56 AM
Sunset: 8:04 PM
Daylight: 14 hrs 15 mins
Moonrise: 11:14 PM
Moon Transit: 5:57 AM
Moonset: 1:25 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
6:13 PM - 8:43 PM

Minor Periods

12:00 AM - 12:00 AM
12:55 AM - 2:25 PM

Action Rating: 3 out of 5

Thursday, August 6, 2026

Weather Forecast

Sunny
84.2°F
67.3°F
75.1°F
84%
0.8 in
83%
0%
14.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.03 μg/m3
Carbon Monoxide: 245.13 μg/m3
Nitrogen Dioxide: 21.93 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 59.63 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:56 AM
Sunset: 8:03 PM
Daylight: 14 hrs 13 mins
Moonrise: 12:14 AM
Moon Transit: 6:51 AM
Moonset: 2:42 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
7:09 PM - 9:39 PM

Minor Periods

2:12 PM - 3:42 PM
12:00 AM - 12:00 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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