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

Current Water Temperature

32.0°F

Measurement Time: Wednesday, July 22, 2026, 4:38 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

66.4°F
Partly cloudy
Partly cloudy
66.4°F
68°F
61%
N 8.9 mph
10.3 mph
68°F
54°F
0 in
75%
9 mi
1018 mbar
2.9

Five Day Weather Forecast

Sunny
Wed
H: 78°F
L: 60°F
Sunny
Thu
H: 77°F
L: 56°F
Partly Cloudy
Fri
H: 76°F
L: 62°F
Cloudy
Sat
H: 78°F
L: 60°F
Thundery outbreaks in nearby
Sun
H: 92°F
L: 70°F

Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 3.7 μg/m3
Carbon Monoxide: 115 μg/m3
Nitrogen Dioxide: 4.2 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 43 mins
Moonrise: 2:56 PM
Moon Transit: 7:42 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
7:12 PM - 9:42 PM

Minor Periods

2:26 PM - 3:56 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued July 21 at 9:03PM CDT until July 23 at 7:00AM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:03 PM
Expires: Wed July 22, 2026, 5:15 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 6 to 9 ft expected. * WHERE...Lake IN and Porter Counties. * WHEN...Through Thursday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.


Beach Hazards Statement issued July 22 at 2:37AM CDT until July 23 at 7:00AM CDT by NWS Chicago IL

Effective: Wed July 22, 2026, 2:37 AM
Expires: Wed July 22, 2026, 10:45 AM

* WHAT...High wave action and dangerous currents at Lake Michigan beaches occurring. * WHERE...Lake IN and Porter Counties. * WHEN...Through Thursday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.


Small Craft Advisory issued July 21 at 9:03PM CDT until July 23 at 4:00AM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:03 PM
Expires: Wed July 22, 2026, 5:15 AM

* WHAT...North winds to 25 kt and significant waves to 9 ft occasionally to 12 ft. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 22 at 2:34AM CDT until July 23 at 4:00AM CDT by NWS Chicago IL

Effective: Wed July 22, 2026, 2:34 AM
Expires: Wed July 22, 2026, 10:45 AM

* WHAT...North winds to 25 kt and significant waves to 9 ft occasionally to 12 ft occurring * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, July 22, 2026

Weather Forecast

Sunny
77.9°F
60.3°F
68.3°F
58%
0 in
5%
0%
11.4 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.42 μg/m3
Carbon Monoxide: 122.79 μg/m3
Nitrogen Dioxide: 6.34 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 78.04 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 43 mins
Moonrise: 2:56 PM
Moon Transit: 7:42 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
7:12 PM - 9:42 PM

Minor Periods

2:26 PM - 3:56 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
76.5°F
56.3°F
67°F
57%
0 in
4%
0%
6.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 12.51 μg/m3
PM10: 12.82 μg/m3
Carbon Monoxide: 205.79 μg/m3
Nitrogen Dioxide: 20.48 μg/m3
Sulphur Dioxide: 6.15 μg/m3
Ozone: 65.13 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 41 mins
Moonrise: 3:59 PM
Moon Transit: 8:30 PM
Moonset: 12:24 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
8:00 PM - 10:30 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Partly Cloudy
76.3°F
62.2°F
68°F
66%
0.01 in
36%
0%
7.2 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 6.8 μg/m3
PM10: 7.08 μg/m3
Carbon Monoxide: 203.13 μg/m3
Nitrogen Dioxide: 13.78 μg/m3
Sulphur Dioxide: 5.01 μg/m3
Ozone: 77.33 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:57 AM
Sunset: 8:17 PM
Daylight: 14 hrs 39 mins
Moonrise: 5:01 PM
Moon Transit: 9:20 PM
Moonset: 12:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
8:50 PM - 11:20 PM

Minor Periods

4:31 PM - 6:01 PM
12:27 AM - 1:57 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Cloudy
77.9°F
60°F
69°F
82%
0 in
22%
0%
8.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 8.53 μg/m3
PM10: 8.79 μg/m3
Carbon Monoxide: 161.44 μg/m3
Nitrogen Dioxide: 14.25 μg/m3
Sulphur Dioxide: 4.21 μg/m3
Ozone: 90.79 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:57 AM
Sunset: 8:16 PM
Daylight: 14 hrs 38 mins
Moonrise: 5:57 PM
Moon Transit: 10:11 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
12:00 AM - 12:00 AM

Minor Periods

5:27 PM - 6:57 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Thundery outbreaks in nearby
92°F
69.8°F
80.9°F
81%
0.17 in
74%
0%
11.2 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 8.21 μg/m3
PM10: 8.44 μg/m3
Carbon Monoxide: 236 μg/m3
Nitrogen Dioxide: 15.8 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 65.38 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:57 AM
Sunset: 8:15 PM
Daylight: 14 hrs 36 mins
Moonrise: 6:46 PM
Moon Transit: 11:03 PM
Moonset: 2:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:26 AM - 12:56 AM
12:00 AM - 12:00 AM

Minor Periods

6:16 PM - 7:46 PM
1:57 AM - 3:27 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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