Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

81.1°F

Measurement Time: Wednesday, July 15, 2026, 1:30 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

91°F
Partly cloudy
Partly cloudy
115.5°F
87.7°F
52%
NE 2.5 mph
4.3 mph
81.1°F
74.6°F
0 in
75%
9 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 98°F
L: 75°F
Sunny
Thu
H: 88°F
L: 74°F
Sunny
Fri
H: 87°F
L: 75°F
Sunny
Sat
H: 92°F
L: 73°F
Sunny
Sun
H: 78°F
L: 70°F

Air Quality

AQI: 1 - Good
PM2.5: 11.1 μg/m3
PM10: 11.6 μg/m3
Carbon Monoxide: 160 μg/m3
Nitrogen Dioxide: 9.7 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 156 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:56 AM
Sunset: 8:24 PM
Daylight: 14 hrs 55 mins
Moonrise: 6:46 AM
Moon Transit: 2:18 PM
Moonset: 9:37 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:48 PM - 4:18 PM

Minor Periods

9:07 PM - 10:37 PM
6:16 AM - 7:46 AM

Action Rating: 3 out of 5

Air Quality Alert issued July 15 at 12:19PM CDT by NWS Chicago IL

Effective: Wed July 15, 2026, 12:19 PM
Expires: Thu July 16, 2026, 12:00 AM

The officials at the Indiana Department of Environmental Management have declared an Air Quality Action Day, through midnight CDT Thursday Night. An Air Quality Action Day for ozone and PM 2.5 has been issued. Fine particulate matter (PM 2.5) levels are expected to be in the Unhealthy range and ozone levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. Here are some recommended actions that the public can take: * Carpool or use public transportation. * Staying indoors whenever possible. * Monitor indoor air quality by keeping air circulating and checking on indoor filtration systems. * Avoid using the drive-through and combine errands into one trip. * Avoid refueling your vehicle or using gasoline-powered lawn equipment until after 7pm. * Turn off your engine when idling for more than 30 seconds. * Conserve energy by turning off lights or setting the air conditioner to 75 degrees or above. For additional information, please visit the IDEM Smog page at: http://www.in.gov/idem/airmonitoring/smogwatch/
Wednesday, July 15, 2026

Weather Forecast

Sunny
97.9°F
75°F
83.6°F
77%
0 in
8%
0%
5.1 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 9.5 μg/m3
PM10: 9.81 μg/m3
Carbon Monoxide: 171.21 μg/m3
Nitrogen Dioxide: 13.59 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 117.46 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:56 AM
Sunset: 8:24 PM
Daylight: 14 hrs 55 mins
Moonrise: 6:46 AM
Moon Transit: 2:18 PM
Moonset: 9:37 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:48 PM - 4:18 PM

Minor Periods

9:07 PM - 10:37 PM
6:16 AM - 7:46 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
87.9°F
73.9°F
81.4°F
62%
0.01 in
17%
0%
8.9 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 13.47 μg/m3
PM10: 13.85 μg/m3
Carbon Monoxide: 185.83 μg/m3
Nitrogen Dioxide: 16.11 μg/m3
Sulphur Dioxide: 2.42 μg/m3
Ozone: 118.17 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:56 AM
Sunset: 8:24 PM
Daylight: 14 hrs 54 mins
Moonrise: 8:05 AM
Moon Transit: 3:11 PM
Moonset: 10:04 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

2:35 AM - 5:05 AM
2:41 PM - 5:11 PM

Minor Periods

9:34 PM - 11:04 PM
7:35 AM - 9:05 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
87.4°F
75.1°F
80.8°F
67%
0.05 in
57%
0%
7.4 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 11.77 μg/m3
PM10: 12.03 μg/m3
Carbon Monoxide: 164.96 μg/m3
Nitrogen Dioxide: 16.79 μg/m3
Sulphur Dioxide: 2.82 μg/m3
Ozone: 111.25 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:56 AM
Sunset: 8:23 PM
Daylight: 14 hrs 52 mins
Moonrise: 9:20 AM
Moon Transit: 4:00 PM
Moonset: 10:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
3:30 PM - 6:00 PM

Minor Periods

9:57 PM - 11:27 PM
8:50 AM - 10:20 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
91.5°F
73.2°F
81.5°F
69%
0 in
8%
0%
16.8 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 6.92 μg/m3
PM10: 7.12 μg/m3
Carbon Monoxide: 166.96 μg/m3
Nitrogen Dioxide: 9.6 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 106.83 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:57 AM
Sunset: 8:22 PM
Daylight: 14 hrs 51 mins
Moonrise: 10:31 AM
Moon Transit: 4:45 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
4:15 PM - 6:45 PM

Minor Periods

10:19 PM - 11:49 PM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
78.1°F
70°F
73.3°F
63%
0 in
17%
0%
13.9 mph
4.8


Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3 μg/m3
Carbon Monoxide: 172.5 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 93.63 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:57 AM
Sunset: 8:21 PM
Daylight: 14 hrs 49 mins
Moonrise: 11:39 AM
Moon Transit: 5:29 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:56 AM - 7:26 AM
4:59 PM - 7:29 PM

Minor Periods

12:00 AM - 12:00 AM
11:09 AM - 12:39 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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