Water Temperature of the Chicago River in Chicago, IL

Current Water Temperature

78.3°F

Measurement Time: Sunday, July 26, 2026, 10:00 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

77.7°F
Cloudy
Cloudy
69.8°F
83.8°F
94%
WSW 5.6 mph
10.1 mph
77.7°F
75.7°F
0 in
78%
0 mi
1009 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 98°F
L: 73°F
Partly Cloudy
Tue
H: 80°F
L: 71°F
Sunny
Wed
H: 80°F
L: 69°F
Sunny
Thu
H: 85°F
L: 67°F
Light drizzle
Fri
H: 76°F
L: 67°F

Air Quality

AQI: 1 - Good
PM2.5: 15.9 μg/m3
PM10: 16.2 μg/m3
Carbon Monoxide: 186 μg/m3
Nitrogen Dioxide: 29.3 μg/m3
Sulphur Dioxide: 2.5 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:57 AM
Sunset: 8:14 PM
Daylight: 14 hrs 35 mins
Moonrise: 7:28 PM
Moon Transit: 11:53 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

11:17 AM - 1:47 PM
12:00 AM - 12:00 AM

Minor Periods

6:58 PM - 8:28 PM
2:52 AM - 4:22 AM

Action Rating: 3 out of 5

Heat Advisory issued July 27 at 3:02AM CDT until July 27 at 9:00PM CDT by NWS Chicago IL

Effective: Mon July 27, 2026, 3:02 AM
Expires: Mon July 27, 2026, 1:15 PM

* WHAT...Peak heat index values up to 100 to 110 degrees expected. * WHERE...Portions of east central and northeast Illinois and northwest Indiana. * WHEN...Until 9 PM CDT /10 PM EDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Beach Hazards Statement issued July 27 at 3:47AM EDT until July 29 at 8:00AM EDT by NWS Northern Indiana

Effective: Mon July 27, 2026, 2:47 AM
Expires: Mon July 27, 2026, 11:00 AM

* WHAT...Life-threatening waves and currents expected. - High wave action: Waves 3 to 4 feet Tuesday morning, increasing to 6 to 8 feet Tuesday afternoon and evening. - Life threatening rip, longshore, and structural currents are expected. Structural currents may be especially strong on the north sides of piers or breakwalls Tuesday afternoon and evening. * WHERE...In Indiana, Northern La Porte county. In Michigan, Northern Berrien and Southern Berrien counties. * WHEN...From late tonight through Wednesday morning. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

Remain out of the water to avoid hazardous swimming conditions. Do not venture out on piers.
Monday, July 27, 2026

Weather Forecast

Sunny
98.4°F
72.5°F
82.7°F
81%
1.2 in
78%
0%
12.5 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 13.99 μg/m3
PM10: 14.33 μg/m3
Carbon Monoxide: 181.08 μg/m3
Nitrogen Dioxide: 20.44 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 87.92 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:57 AM
Sunset: 8:14 PM
Daylight: 14 hrs 35 mins
Moonrise: 7:28 PM
Moon Transit: 11:53 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

11:17 AM - 1:47 PM
12:00 AM - 12:00 AM

Minor Periods

6:58 PM - 8:28 PM
2:52 AM - 4:22 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Partly Cloudy
79.6°F
71.4°F
75.2°F
72%
0.06 in
57%
0%
16.6 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 9.09 μg/m3
PM10: 9.35 μg/m3
Carbon Monoxide: 144.29 μg/m3
Nitrogen Dioxide: 7.22 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 80.75 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:57 AM
Sunset: 8:13 PM
Daylight: 14 hrs 33 mins
Moonrise: 8:03 PM
Moon Transit: 12:00 AM
Moonset: 4:24 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:07 AM - 2:37 PM

Minor Periods

7:33 PM - 9:03 PM
3:54 AM - 5:24 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
79.7°F
68.9°F
74.4°F
54%
0 in
2%
0%
10.5 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 6.81 μg/m3
PM10: 6.99 μg/m3
Carbon Monoxide: 119.75 μg/m3
Nitrogen Dioxide: 8.16 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 69.83 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:57 AM
Sunset: 8:12 PM
Daylight: 14 hrs 31 mins
Moonrise: 8:32 PM
Moon Transit: 12:42 AM
Moonset: 5:29 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
12:55 AM - 3:25 PM

Minor Periods

8:02 PM - 9:32 PM
4:59 AM - 6:29 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
85.3°F
67.4°F
76.9°F
54%
0 in
2%
0%
6.9 mph
8.3


Air Quality

AQI: 2 - Moderate
PM2.5: 18.58 μg/m3
PM10: 18.81 μg/m3
Carbon Monoxide: 204.38 μg/m3
Nitrogen Dioxide: 29.74 μg/m3
Sulphur Dioxide: 4.41 μg/m3
Ozone: 82.13 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:57 AM
Sunset: 8:11 PM
Daylight: 14 hrs 29 mins
Moonrise: 8:56 PM
Moon Transit: 1:29 AM
Moonset: 6:35 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
1:40 PM - 4:10 PM

Minor Periods

8:26 PM - 9:56 PM
6:05 AM - 7:35 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Light drizzle
76.4°F
67.1°F
70.6°F
88%
0.46 in
89%
0%
12.1 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 14.89 μg/m3
PM10: 15.11 μg/m3
Carbon Monoxide: 282.13 μg/m3
Nitrogen Dioxide: 29.29 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 59.13 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 12:57 AM
Sunset: 8:10 PM
Daylight: 14 hrs 26 mins
Moonrise: 9:17 PM
Moon Transit: 2:13 AM
Moonset: 7:41 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
2:24 PM - 4:54 PM

Minor Periods

8:47 PM - 10:17 PM
7:11 AM - 8:41 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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