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

Current Water Temperature

32.0°F

Measurement Time: Sunday, June 21, 2026, 7:04 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

72°F
Overcast
Overcast
75.8°F
76.7°F
55%
ESE 4.9 mph
6.2 mph
75°F
53.9°F
0 in
100%
9 mi
1013 mbar
1

Five Day Weather Forecast

Moderate rain
Sun
H: 77°F
L: 59°F
Patchy rain nearby
Mon
H: 72°F
L: 59°F
Sunny
Tue
H: 74°F
L: 58°F
Moderate rain
Wed
H: 75°F
L: 59°F
Patchy rain nearby
Thu
H: 80°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 151 μg/m3
Nitrogen Dioxide: 17.7 μg/m3
Sulphur Dioxide: 10 μg/m3
Ozone: 62 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

Beach Hazards Statement issued June 21 at 4:16AM CDT until June 23 at 4:00AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 4:16 AM
Expires: Sun June 21, 2026, 12:30 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 7 ft expected. * WHERE...In Illinois, Central Cook County. In Indiana, Lake and Porter Counties. * WHEN...From this evening through late Monday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

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


Hydrologic Outlook issued June 21 at 3:59AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 3:59 AM
Expires: Sun June 21, 2026, 1:00 PM

ESFLOT A steady soaking rain is expected this afternoon and evening. The highest rainfall amounts are forecast generally south of I-88 where totals in excess of 1 to 2 inches are possible. Many rivers and streams across the region remain elevated from recent heavy rainfall. Thus, rainfall amounts of this magnitude will result in renewed rises on area streams and rivers, with some potentially topping flood stage. Anyone in or near flood prone areas should closely monitor later forecasts. This will be the final outlook for this event.


Beach Hazards Statement issued June 21 at 9:55AM CDT until June 23 at 4:00AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 9:55 AM
Expires: Sun June 21, 2026, 6:00 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 7 ft expected. * WHERE...In Illinois, Central Cook County. In Indiana, Lake and Porter Counties. * WHEN...From 7 PM CDT this evening through late Monday night. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

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 June 21 at 3:50AM CDT until June 23 at 4:00AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 3:50 AM
Expires: Sun June 21, 2026, 12:00 PM

* WHAT...Northeast winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 4 PM this afternoon to 4 AM CDT Tuesday. * 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 June 21 at 9:45AM CDT until June 23 at 4:00AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 9:45 AM
Expires: Sun June 21, 2026, 5:45 PM

* WHAT...Northeast winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Calumet Harbor IL to Michigan City IN. * WHEN...From 4 PM this afternoon to 4 AM CDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

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


Sunday, June 21, 2026

Weather Forecast

Moderate rain
77°F
59.1°F
65.4°F
77%
0.73 in
75%
0%
13.4 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 10.64 μg/m3
PM10: 10.85 μg/m3
Carbon Monoxide: 168.21 μg/m3
Nitrogen Dioxide: 25.53 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 47.79 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

Monday, June 22, 2026

Weather Forecast

Patchy rain nearby
72.2°F
59.1°F
63.8°F
74%
0.17 in
68%
0%
13.9 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.37 μg/m3
Carbon Monoxide: 116.67 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 76.21 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:52 AM
Sunset: 8:29 PM
Daylight: 15 hrs 13 mins
Moonrise: 1:52 PM
Moon Transit: 7:33 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
7:03 PM - 9:33 PM

Minor Periods

1:22 PM - 2:52 PM
12:16 AM - 1:46 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Sunny
73.7°F
57.7°F
65.8°F
53%
0 in
3%
0%
7.8 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 4.63 μg/m3
PM10: 4.64 μg/m3
Carbon Monoxide: 126.35 μg/m3
Nitrogen Dioxide: 9.48 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 56.17 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:53 AM
Sunset: 8:29 PM
Daylight: 15 hrs 13 mins
Moonrise: 2:56 PM
Moon Transit: 8:16 PM
Moonset: 1:06 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
7:46 PM - 10:16 PM

Minor Periods

2:26 PM - 3:56 PM
12:36 AM - 2:06 AM

Action Rating: 2 out of 5

Wednesday, June 24, 2026

Weather Forecast

Moderate rain
75.1°F
59.4°F
67.5°F
71%
0.22 in
70%
0%
9.8 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 7.54 μg/m3
PM10: 7.67 μg/m3
Carbon Monoxide: 182.08 μg/m3
Nitrogen Dioxide: 18.22 μg/m3
Sulphur Dioxide: 4.87 μg/m3
Ozone: 59.13 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:53 AM
Sunset: 8:29 PM
Daylight: 15 hrs 12 mins
Moonrise: 4:01 PM
Moon Transit: 9:00 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
8:30 PM - 11:00 PM

Minor Periods

3:31 PM - 5:01 PM
12:58 AM - 2:28 AM

Action Rating: 3 out of 5

Thursday, June 25, 2026

Weather Forecast

Patchy rain nearby
79.7°F
62.7°F
68.1°F
75%
0.05 in
57%
0%
7.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.14 μg/m3
Carbon Monoxide: 155.38 μg/m3
Nitrogen Dioxide: 11.4 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 63.13 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:53 AM
Sunset: 8:29 PM
Daylight: 15 hrs 12 mins
Moonrise: 5:05 PM
Moon Transit: 9:46 PM
Moonset: 1:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

9:12 AM - 11:42 AM
9:16 PM - 11:46 PM

Minor Periods

4:35 PM - 6:05 PM
1:23 AM - 2:53 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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