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

Current Water Temperature

32.0°F

Measurement Time: Saturday, June 27, 2026, 11:14 AM 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

77.2°F
Partly cloudy
Partly cloudy
79.6°F
81.9°F
64%
ENE 8.9 mph
10.3 mph
79°F
69.6°F
0 in
75%
9 mi
1015 mbar
3.8

Five Day Weather Forecast

Sunny
Sat
H: 83°F
L: 60°F
Partly Cloudy
Sun
H: 87°F
L: 66°F
Sunny
Mon
H: 93°F
L: 75°F
Sunny
Tue
H: 95°F
L: 76°F
Sunny
Wed
H: 96°F
L: 77°F

Air Quality

AQI: 2 - Moderate
PM2.5: 18.9 μg/m3
PM10: 19.3 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 3.8 μg/m3
Ozone: 132 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 12:53 AM
Sunset: 8:30 PM
Daylight: 15 hrs 11 mins
Moonrise: 7:08 PM
Moon Transit: 11:25 PM
Moonset: 2:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:49 AM - 1:19 PM
12:00 AM - 12:00 AM

Minor Periods

6:38 PM - 8:08 PM
2:28 AM - 3:58 AM

Action Rating: 3 out of 5

Extreme Heat Watch issued June 27 at 11:51AM CDT until July 1 at 10:00PM CDT by NWS Chicago IL

Effective: Sat June 27, 2026, 11:51 AM
Expires: Sat June 27, 2026, 10:00 PM

* WHAT...Dangerously hot conditions with heat index values around 105 possible. * WHERE...Cook County. * WHEN...From Monday afternoon through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Saturday, June 27, 2026

Weather Forecast

Sunny
82.9°F
59.9°F
70.1°F
78%
0 in
9%
0%
9.4 mph
5.2


Air Quality

AQI: 2 - Moderate
PM2.5: 15.69 μg/m3
PM10: 15.96 μg/m3
Carbon Monoxide: 143.25 μg/m3
Nitrogen Dioxide: 7.92 μg/m3
Sulphur Dioxide: 2.73 μg/m3
Ozone: 91.79 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 12:53 AM
Sunset: 8:30 PM
Daylight: 15 hrs 11 mins
Moonrise: 7:08 PM
Moon Transit: 11:25 PM
Moonset: 2:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:49 AM - 1:19 PM
12:00 AM - 12:00 AM

Minor Periods

6:38 PM - 8:08 PM
2:28 AM - 3:58 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Partly Cloudy
87.1°F
65.5°F
76.8°F
74%
0 in
17%
0%
9.6 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 8.51 μg/m3
PM10: 8.64 μg/m3
Carbon Monoxide: 161.88 μg/m3
Nitrogen Dioxide: 9.05 μg/m3
Sulphur Dioxide: 3.21 μg/m3
Ozone: 87.46 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:54 AM
Sunset: 8:29 PM
Daylight: 15 hrs 11 mins
Moonrise: 8:02 PM
Moon Transit: 12:00 AM
Moonset: 3:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:40 AM - 2:10 PM

Minor Periods

7:32 PM - 9:02 PM
3:11 AM - 4:41 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Sunny
92.6°F
75.2°F
84.1°F
73%
0 in
8%
0%
13.4 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 134.67 μg/m3
Nitrogen Dioxide: 6.01 μg/m3
Sulphur Dioxide: 2.44 μg/m3
Ozone: 82.33 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:54 AM
Sunset: 8:29 PM
Daylight: 15 hrs 10 mins
Moonrise: 8:49 PM
Moon Transit: 12:16 AM
Moonset: 4:33 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:31 AM - 3:01 PM

Minor Periods

8:19 PM - 9:49 PM
4:03 AM - 5:33 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Sunny
95.1°F
76.4°F
85.6°F
67%
0 in
4%
0%
13.4 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 13.09 μg/m3
PM10: 19.04 μg/m3
Carbon Monoxide: 142.53 μg/m3
Nitrogen Dioxide: 5.08 μg/m3
Sulphur Dioxide: 2.24 μg/m3
Ozone: 90.96 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:54 AM
Sunset: 8:29 PM
Daylight: 15 hrs 10 mins
Moonrise: 9:27 PM
Moon Transit: 1:08 AM
Moonset: 5:31 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
1:22 PM - 3:52 PM

Minor Periods

8:57 PM - 10:27 PM
5:01 AM - 6:31 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
96°F
77.3°F
86.4°F
64%
0 in
4%
0%
11.4 mph
0.6


Air Quality

AQI: 2 - Moderate
PM2.5: 16.66 μg/m3
PM10: 22.88 μg/m3
Carbon Monoxide: 207.25 μg/m3
Nitrogen Dioxide: 6.29 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 64.13 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:54 AM
Sunset: 8:29 PM
Daylight: 15 hrs 9 mins
Moonrise: 10:00 PM
Moon Transit: 1:57 AM
Moonset: 6:34 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
2:11 PM - 4:41 PM

Minor Periods

9:30 PM - 11:00 PM
6:04 AM - 7:34 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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