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

Current Water Temperature

32.0°F

Measurement Time: Wednesday, April 22, 2026, 7:21 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

50.5°F
Clear
Clear
50.1°F
50°F
68%
SE 3.1 mph
6.4 mph
50.1°F
43.2°F
0 in
25%
9 mi
1014 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 80°F
L: 50°F
Moderate rain
Fri
H: 67°F
L: 57°F
Sunny
Sat
H: 64°F
L: 51°F
Sunny
Sun
H: 69°F
L: 49°F
Moderate rain
Mon
H: 66°F
L: 56°F

Air Quality

PM2.5: 6.65 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 188.85 μg/m3
Nitrogen Dioxide: 13.95 μg/m3
Sulphur Dioxide: 4.15 μg/m3
Ozone: 54 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

Flood Warning issued April 22 at 10:24AM CDT until April 25 at 1:00AM CDT by NWS Chicago IL

Effective: Wed April 22, 2026, 10:24 AM
Expires: Thu April 23, 2026, 4:30 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 Gurnee affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...Until early Saturday morning. * IMPACTS...At 17.0 feet, Central Road and Golf Road are threatened in Des Plaines. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 17.5 feet. - Forecast...The river is expected to gradually fall through the week, and may fall below flood stage on Saturday. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood

These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. 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. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Flood Warning issued April 22 at 10:24AM CDT until April 24 at 1:00PM CDT by NWS Chicago IL

Effective: Wed April 22, 2026, 10:24 AM
Expires: Thu April 23, 2026, 4:30 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 Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until early Friday afternoon. * IMPACTS...At 15.0 feet, Structures threatened along IL-22 (Half-Day Road) just east of the river. Multiple structures threatened near and west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield Road threatened near the river. Multiple trails inundated in Half-Day Forest Preserve. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 14.6 feet. - Forecast...The river is expected to continue gradually falling, and may fall below Flood stage on Friday. - Flood stage is 12.5 feet. - http://www.weather.gov/safety/flood

These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. 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. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Flood Warning issued April 22 at 10:39AM CDT by NWS Chicago IL

Effective: Wed April 22, 2026, 10:39 AM
Expires: Thu April 23, 2026, 4:45 AM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Red Gate Road in St. Charles downstream to Millington, including the Montgomery gauge. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles. * ADDITIONAL DETAILS... - At 10:00 AM CDT Wednesday the stage was 13.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Wednesday was 13.6 feet. - Forecast...The river is expected to remain nearly steady at around 13.6 feet until at least early next week. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood

These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. 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. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Flood Warning issued April 22 at 10:39AM CDT by NWS Chicago IL

Effective: Wed April 22, 2026, 10:39 AM
Expires: Thu April 23, 2026, 4:45 AM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Structures threatened along River Street, Johnson Street, and Maiden Lane in East Dundee. North Harrison Street threatened near Riverside Park in Algonquin. Washington Street threatened in Carpentersville. Water Street, Edwards Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road threatened in Elgin. Low-lying areas of Festival Park are threatened in Elgin. * ADDITIONAL DETAILS... - At 9:30 AM CDT Wednesday the stage was 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM CDT Wednesday was 12.0 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet Thursday evening, then remain near crest through Saturday before slowly falling. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood

These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. 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. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.


Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
80°F
49.5°F
66°F
66%
0.04 in
72%
0%
13.6 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 14.06 μg/m3
PM10: 14.95 μg/m3
Carbon Monoxide: 220.89 μg/m3
Nitrogen Dioxide: 16.22 μg/m3
Sulphur Dioxide: 4.57 μg/m3
Ozone: 79.8 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

Friday, April 24, 2026

Weather Forecast

Moderate rain
67.3°F
57°F
63.8°F
72%
0.23 in
89%
0%
12.8 mph
3.5


Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 7.28 μg/m3
Carbon Monoxide: 177.41 μg/m3
Nitrogen Dioxide: 8.73 μg/m3
Sulphur Dioxide: 3.91 μg/m3
Ozone: 92.4 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 12:48 AM
Sunset: 7:41 PM
Daylight: 13 hrs 44 mins
Moonrise: 12:31 AM
Moon Transit: 7:57 PM
Moonset: 2:41 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

7:20 AM - 9:50 AM
7:27 PM - 9:57 PM

Minor Periods

12:01 AM - 1:31 PM
2:11 AM - 3:41 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Sunny
63.9°F
50.8°F
56.2°F
48%
0 in
0%
0%
9.2 mph
5.1


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 6.44 μg/m3
Carbon Monoxide: 203.64 μg/m3
Nitrogen Dioxide: 17.88 μg/m3
Sulphur Dioxide: 4.52 μg/m3
Ozone: 70.12 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:48 AM
Sunset: 7:42 PM
Daylight: 13 hrs 47 mins
Moonrise: 1:43 PM
Moon Transit: 8:44 PM
Moonset: 3:10 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
8:14 PM - 10:44 PM

Minor Periods

1:13 PM - 2:43 PM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Sunny
69.4°F
48.8°F
59.1°F
46%
0 in
0%
0%
10.5 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 5.3 μg/m3
PM10: 5.46 μg/m3
Carbon Monoxide: 215.41 μg/m3
Nitrogen Dioxide: 16.3 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 62.92 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:48 AM
Sunset: 7:43 PM
Daylight: 13 hrs 49 mins
Moonrise: 2:52 PM
Moon Transit: 9:29 PM
Moonset: 3:34 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
8:59 PM - 11:29 PM

Minor Periods

2:22 PM - 3:52 PM
3:04 AM - 4:34 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Moderate rain
66.2°F
55.8°F
60.3°F
60%
0.21 in
69%
0%
16.1 mph
0.2


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:48 AM
Sunset: 7:44 PM
Daylight: 13 hrs 52 mins
Moonrise: 3:58 PM
Moon Transit: 10:12 PM
Moonset: 3:55 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

9:40 AM - 12:10 AM
12:00 AM - 12:00 AM

Minor Periods

3:28 PM - 4:58 PM
3:25 AM - 4:55 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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