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

Current Water Temperature

32.0°F

Measurement Time: Wednesday, June 17, 2026, 4:20 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

61°F
Overcast
Overcast
61°F
64°F
67%
SSE 7.8 mph
9.4 mph
64°F
49.5°F
0 in
100%
9 mi
1004 mbar
0.6

Five Day Weather Forecast

Heavy rain
Wed
H: 69°F
L: 56°F
Patchy rain nearby
Thu
H: 72°F
L: 58°F
Sunny
Fri
H: 72°F
L: 57°F
Patchy rain nearby
Sat
H: 73°F
L: 57°F
Moderate rain
Sun
H: 64°F
L: 60°F

Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 163 μg/m3
Nitrogen Dioxide: 17.8 μg/m3
Sulphur Dioxide: 3.1 μg/m3
Ozone: 46 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 12 mins
Moonrise: 7:54 AM
Moon Transit: 3:38 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

2:58 AM - 5:28 AM
3:08 PM - 5:38 PM

Minor Periods

12:00 AM - 12:00 AM
7:24 AM - 8:54 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 16 at 9:51PM CDT until June 17 at 7:00PM CDT by NWS Chicago IL

Effective: Tue June 16, 2026, 9:51 PM
Expires: Wed June 17, 2026, 6:00 AM

* WHAT...Southeast winds to 30 kt and significant waves to 4 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 1 PM to 7 PM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, June 17, 2026

Weather Forecast

Heavy rain
69.3°F
56.3°F
62.5°F
82%
0.95 in
80%
0%
17 mph
2.3


Air Quality

AQI: 1 - Good
PM2.5: 4.58 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 141.96 μg/m3
Nitrogen Dioxide: 11.4 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 62.54 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 12 mins
Moonrise: 7:54 AM
Moon Transit: 3:38 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

2:58 AM - 5:28 AM
3:08 PM - 5:38 PM

Minor Periods

12:00 AM - 12:00 AM
7:24 AM - 8:54 AM

Action Rating: 3 out of 5

Thursday, June 18, 2026

Weather Forecast

Patchy rain nearby
71.8°F
58.3°F
64.7°F
71%
0.01 in
23%
0%
12.5 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 3.4 μg/m3
PM10: 3.46 μg/m3
Carbon Monoxide: 132.96 μg/m3
Nitrogen Dioxide: 7.28 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 69.25 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 12 mins
Moonrise: 9:13 AM
Moon Transit: 4:33 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:03 PM - 6:33 PM

Minor Periods

8:43 AM - 10:13 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Sunny
71.6°F
57.4°F
64.9°F
54%
0 in
3%
0%
13.6 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 5.04 μg/m3
PM10: 5.13 μg/m3
Carbon Monoxide: 142.79 μg/m3
Nitrogen Dioxide: 11.28 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 59.42 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:52 AM
Sunset: 8:28 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:29 AM
Moon Transit: 5:22 PM
Moonset: 12:39 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

4:47 AM - 7:17 AM
4:52 PM - 7:22 PM

Minor Periods

9:59 AM - 11:29 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, June 20, 2026

Weather Forecast

Patchy rain nearby
72.6°F
56.8°F
65.1°F
69%
0.04 in
57%
0%
11.9 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 5.34 μg/m3
PM10: 5.73 μg/m3
Carbon Monoxide: 136.37 μg/m3
Nitrogen Dioxide: 10.98 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 68.96 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:52 AM
Sunset: 8:29 PM
Daylight: 15 hrs 13 mins
Moonrise: 11:39 AM
Moon Transit: 6:08 PM
Moonset: 12:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
5:38 PM - 8:08 PM

Minor Periods

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

Action Rating: 4 out of 5

Sunday, June 21, 2026

Weather Forecast

Moderate rain
63.8°F
59.7°F
63.3°F
91%
0.77 in
90%
0%
11.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.11 μg/m3
PM10: 12.3 μg/m3
Carbon Monoxide: 190.38 μg/m3
Nitrogen Dioxide: 29.76 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 36.63 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:52 AM
Sunset: 8:29 PM
Daylight: 15 hrs 13 mins
Moonrise: 12:47 AM
Moon Transit: 6:51 PM
Moonset: 12:25 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
6:21 PM - 8:51 PM

Minor Periods

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