Water Temperature of the Cal-Sag Channel in Blue Island, IL

Current Water Temperature

32.0°F

Measurement Time: Sunday, April 19, 2026, 6:58 PM CDT

Temperature Locations

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Local Points of Interest

Calumet-Saganashkee Channel; Little Calumet River

Cal-Sag Channel

Station Name: CALUMET SAG CHANNEL AT BLUE ISLAND, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 597 feet

Nearest Address:
13198 Division St
Blue Island, IL 60406
Cook County

GPS Coordinates: 41.65281186, -87.670326

Nearby Water Temperatures

Grand Calumet River, Chicago, IL (5.6 mi)
Grand Calumet River, Hammond, IN (9.1 mi)
Indiana Harbor Canal, East Chicago, IN (10.4 mi)
Hart Ditch, Munster, IN (11.7 mi)
Chicago River, Chicago, IL (12.8 mi)
Plum Creek, Dyer, IN (13 mi)
Little Calumet River, Gary, IN (15.1 mi)
Lake Michigan, Chicago, IL (17.4 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (20.1 mi)
Deep River, Lake Station, IN (20.3 mi)
Des Plaines River, Lockport, IL (21.8 mi)
Des Plaines River, Joliet, IL (22.8 mi)
Des Plaines River, Rockdale, IL (24.9 mi)
Des Plaines River, Channahon, IL (32.6 mi)
Lake Michigan, Wilmette, IL (33.3 mi)

Weather for Blue Island, Illinois

Current Weather

42.1°F
Partly cloudy
Partly cloudy
37.8°F
38.5°F
59%
NNW 6.7 mph
9.8 mph
36.6°F
35.3°F
0 in
75%
9 mi
1024 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 51°F
L: 35°F
Sunny
Mon
H: 56°F
L: 33°F
Patchy rain nearby
Tue
H: 72°F
L: 50°F
Patchy rain nearby
Wed
H: 65°F
L: 56°F
Patchy rain nearby
Thu
H: 77°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 13.35 μg/m3
PM10: 14.35 μg/m3
Carbon Monoxide: 179.85 μg/m3
Nitrogen Dioxide: 17.85 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 12:49 AM
Sunset: 7:36 PM
Daylight: 13 hrs 31 mins
Moonrise: 7:01 AM
Moon Transit: 2:55 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
2:25 PM - 4:55 PM

Minor Periods

12:00 AM - 12:00 AM
6:31 AM - 8:01 AM

Action Rating: 3 out of 5

Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 11:44 AM
Expires: Mon April 20, 2026, 5:45 AM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and major flooding is forecasted to occur. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Numerous structures threatened along US-45 (Milwaukee Avenue) between IL-22 (Half Day Road) and Deerfield Road. Access route threatened for numerous residences near US-45 (Milwaukee Avenue) and Deerfield Road. IL-60 (Townline Road) threatened near the river. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday, the stage was 15.0 feet. - Forecast...The river is expected to rise to a crest near 15.6 feet (Major Flood Stage) late tonight. It will then fall over the next several days. - Flood stage is 12.5 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 almost entirely on observed precipitation as little to no additional precipitation is currently expected over the next 24 to 48 hours. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Flood Warning issued April 19 at 11:44AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 11:44 AM
Expires: Mon April 20, 2026, 5:45 AM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Minor flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...Until further notice. * IMPACTS...At 18.5 feet, Big Bend Road threatened in Des Plaines. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday, the stage was 17.8 feet. - Forecast...The river is expected to rise to a crest near 18.0 feet this evening. It will then fall over the next several days. - Flood stage is 15.0 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 almost entirely on observed precipitation as little to no additional precipitation is currently expected over the next 24 to 48 hours. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Freeze Warning issued April 19 at 8:44AM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 8:44 AM
Expires: Sun April 19, 2026, 7:00 PM

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Northern Cook and Southern Cook Counties. * WHEN...From midnight tonight to 9 AM CDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Freeze Warning issued April 19 at 2:40PM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 2:40 PM
Expires: Mon April 20, 2026, 1:00 AM

* WHAT...Sub-freezing temperatures as low as 27 expected, with the coldest conditions across interior northern Illinois. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.


Frost Advisory issued April 19 at 2:40PM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 2:40 PM
Expires: Mon April 20, 2026, 1:00 AM

* WHAT...Temperatures as low as 33 will result in frost formation in the near west suburbs. Temperatures as low as 35 with patchy frost in Chicago. * WHERE...Central Cook County. * WHEN...From 2 AM to 9 AM CDT Monday. * 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.


Sunday, April 19, 2026

Weather Forecast

Sunny
51.4°F
34.9°F
43°F
65%
0 in
0%
0%
15.2 mph
4.1


Air Quality

AQI: 1 - Good
PM2.5: 7.65 μg/m3
PM10: 8.42 μg/m3
Carbon Monoxide: 189.29 μg/m3
Nitrogen Dioxide: 8.59 μg/m3
Sulphur Dioxide: 3.33 μg/m3
Ozone: 82.48 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 12:49 AM
Sunset: 7:36 PM
Daylight: 13 hrs 31 mins
Moonrise: 7:01 AM
Moon Transit: 2:55 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
2:25 PM - 4:55 PM

Minor Periods

12:00 AM - 12:00 AM
6:31 AM - 8:01 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
55.5°F
32.9°F
45°F
54%
0 in
0%
0%
8.7 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 11.1 μg/m3
PM10: 12.07 μg/m3
Carbon Monoxide: 237.65 μg/m3
Nitrogen Dioxide: 14.09 μg/m3
Sulphur Dioxide: 4.79 μg/m3
Ozone: 80.24 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 12:49 AM
Sunset: 7:37 PM
Daylight: 13 hrs 34 mins
Moonrise: 7:50 AM
Moon Transit: 4:00 PM
Moonset: 12:00 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
3:30 PM - 6:00 PM

Minor Periods

7:20 AM - 8:50 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, April 21, 2026

Weather Forecast

Patchy rain nearby
71.7°F
49.8°F
59.9°F
68%
0.19 in
86%
0%
15 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 10.11 μg/m3
PM10: 10.83 μg/m3
Carbon Monoxide: 206.05 μg/m3
Nitrogen Dioxide: 8.05 μg/m3
Sulphur Dioxide: 5.7 μg/m3
Ozone: 96.4 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 12:49 AM
Sunset: 7:38 PM
Daylight: 13 hrs 37 mins
Moonrise: 8:50 AM
Moon Transit: 5:04 PM
Moonset: 12:14 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
4:34 PM - 7:04 PM

Minor Periods

8:20 AM - 9:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
64.6°F
55.8°F
60°F
89%
0.01 in
89%
0%
4.9 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 9.45 μg/m3
PM10: 9.91 μg/m3
Carbon Monoxide: 208.61 μg/m3
Nitrogen Dioxide: 12.53 μg/m3
Sulphur Dioxide: 4.4 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 12:49 AM
Sunset: 7:39 PM
Daylight: 13 hrs 39 mins
Moonrise: 10:01 AM
Moon Transit: 6:06 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
5:36 PM - 8:06 PM

Minor Periods

9:31 AM - 11:01 AM
12:45 AM - 2:15 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
76.6°F
60.7°F
67.3°F
68%
0.01 in
88%
0%
13.2 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 13.01 μg/m3
PM10: 13.51 μg/m3
Carbon Monoxide: 255 μg/m3
Nitrogen Dioxide: 19.91 μg/m3
Sulphur Dioxide: 4.12 μg/m3
Ozone: 62.46 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 12:48 AM
Sunset: 7:40 PM
Daylight: 13 hrs 42 mins
Moonrise: 11:15 AM
Moon Transit: 7:04 PM
Moonset: 2:03 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
6:34 PM - 9:04 PM

Minor Periods

10:45 AM - 12:15 AM
1:33 AM - 3:03 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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