Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

75.4°F

Measurement Time: Saturday, August 1, 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

69.1°F
Moderate rain at times
Moderate rain at times
69.1°F
69.1°F
94%
ESE 11.2 mph
16.1 mph
69.1°F
67.3°F
0.11 in
65%
6 mi
1006 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 75°F
L: 68°F
Patchy rain nearby
Sun
H: 72°F
L: 67°F
Sunny
Mon
H: 76°F
L: 66°F
Sunny
Tue
H: 79°F
L: 64°F
Sunny
Wed
H: 82°F
L: 69°F

Air Quality

AQI: 2 - Moderate
PM2.5: 4.6 μg/m3
PM10: 4.7 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 6.3 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:57 AM
Sunset: 8:09 PM
Daylight: 14 hrs 24 mins
Moonrise: 9:37 PM
Moon Transit: 2:56 AM
Moonset: 8:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
3:07 PM - 5:37 PM

Minor Periods

9:07 PM - 10:37 PM
8:17 AM - 9:47 AM

Action Rating: 2 out of 5

Flood Advisory issued August 1 at 6:09AM CDT until August 1 at 11:15AM CDT by NWS Chicago IL

Effective: Sat August 1, 2026, 6:09 AM
Expires: Sat August 1, 2026, 11:15 AM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Cook County in northeastern Illinois... Central Will County in northeastern Illinois... * WHEN...Until 1115 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 608 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 1 inch of rain has fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Chicago, Cicero, Evanston, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, Berwyn, Mount Prospect, Oak Park, Glenview, Ohare Airport, Wheeling, Park Ridge, Calumet City, Northbrook, Chicago Heights and Niles. - http://www.weather.gov/safety/flood

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.


Small Craft Advisory issued July 31 at 9:06PM CDT until August 3 at 3:00AM CDT by NWS Chicago IL

Effective: Fri July 31, 2026, 9:06 PM
Expires: Sat August 1, 2026, 5:15 AM

* WHAT...Northeast winds to 30 kt and significant waves to 9 ft occasionally to 12 ft expected. * WHERE...Calumet Harbor, IL to Michigan City, IN. * WHEN...From 9 AM Saturday to 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 1 at 3:05AM CDT until August 3 at 3:00AM CDT by NWS Chicago IL

Effective: Sat August 1, 2026, 3:05 AM
Expires: Sat August 1, 2026, 11:15 AM

* WHAT...Northeast winds to 30 kt and significant waves to 9 ft occasionally to 12 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 9 AM this morning to 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.


Saturday, August 1, 2026

Weather Forecast

Patchy rain nearby
75.4°F
67.6°F
70.5°F
87%
0.56 in
87%
0%
14.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 7 μg/m3
PM10: 7.08 μg/m3
Carbon Monoxide: 144.79 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 89.54 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:57 AM
Sunset: 8:09 PM
Daylight: 14 hrs 24 mins
Moonrise: 9:37 PM
Moon Transit: 2:56 AM
Moonset: 8:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:26 AM - 4:56 AM
3:07 PM - 5:37 PM

Minor Periods

9:07 PM - 10:37 PM
8:17 AM - 9:47 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Patchy rain nearby
72.4°F
67.2°F
69.2°F
82%
0.06 in
64%
0%
17 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 6.11 μg/m3
Carbon Monoxide: 128.83 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 78.13 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
75.6°F
65.9°F
70.3°F
64%
0 in
4%
0%
9.6 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 5.69 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 120.75 μg/m3
Nitrogen Dioxide: 8.55 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 73.63 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
78.9°F
63.6°F
72.3°F
66%
0 in
5%
0%
8.9 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 10.2 μg/m3
PM10: 10.26 μg/m3
Carbon Monoxide: 141.62 μg/m3
Nitrogen Dioxide: 15.81 μg/m3
Sulphur Dioxide: 3.16 μg/m3
Ozone: 90.54 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
81.5°F
68.6°F
75.4°F
69%
0 in
5%
0%
6.7 mph
7


Air Quality

AQI: 2 - Moderate
PM2.5: 20.99 μg/m3
PM10: 21.04 μg/m3
Carbon Monoxide: 315.88 μg/m3
Nitrogen Dioxide: 49.54 μg/m3
Sulphur Dioxide: 3.04 μg/m3
Ozone: 52 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

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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