Water Temperature of the Chicago Sanitary and Ship Canal in Romeoville, IL

Current Water Temperature

67.5°F

Measurement Time: Thursday, May 21, 2026, 8:00 PM CDT

Temperature Locations

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Chicago Sanitary and Ship Canal

Station Name: CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 581 feet

Nearest Address:
790 E Old Romeo Rd
Romeoville, IL 60446
Will County

GPS Coordinates: 41.6408333, -88.0594444

Nearby Water Temperatures

Des Plaines River, Lockport, IL (5 mi)
Des Plaines River, Joliet, IL (7.3 mi)
Des Plaines River, Rockdale, IL (10 mi)
Des Plaines River, Channahon, IL (17.6 mi)
Cal-Sag Channel, Blue Island, IL (20.1 mi)
Kankakee River, Morris, IL (20.3 mi)
Kankakee River, Wilmington, IL (21.4 mi)
Chicago River, Chicago, IL (23.6 mi)
Grand Calumet River, Chicago, IL (25.7 mi)
Kankakee River, Custer Park, IL (27.5 mi)
Grand Calumet River, Hammond, IN (28.9 mi)
Plum Creek, Dyer, IN (29.8 mi)
Hanson Gravel Pit, Morris, IL (29.9 mi)
Hart Ditch, Munster, IN (30.4 mi)
Indiana Harbor Canal, East Chicago, IN (30.5 mi)

Weather for Romeoville, Illinois

Current Weather

57.7°F
Overcast
Overcast
55.5°F
53.2°F
55%
E 10.3 mph
15 mph
50.4°F
40.1°F
0 in
100%
9 mi
1021 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 76°F
L: 52°F
Patchy rain nearby
Sat
H: 68°F
L: 57°F
Patchy rain nearby
Sun
H: 78°F
L: 58°F
Moderate rain
Mon
H: 78°F
L: 62°F
Patchy rain nearby
Tue
H: 80°F
L: 63°F

Air Quality

AQI: 2 - Moderate
PM2.5: 5.45 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 12.05 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:48 AM
Sunset: 8:12 PM
Daylight: 14 hrs 46 mins
Moonrise: 11:34 AM
Moon Transit: 6:43 PM
Moonset: 1:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
6:13 PM - 8:43 PM

Minor Periods

11:04 AM - 12:34 AM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued May 21 at 3:15PM CDT until May 23 at 1:00PM CDT by NWS Chicago IL

Effective: Thu May 21, 2026, 3:15 PM
Expires: Thu May 21, 2026, 11:15 PM

* WHAT...High waves of 3 to 6 feet and dangerous currents occuring at Lake Michigan beaches. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Saturday afternoon. * 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.


Beach Hazards Statement issued May 21 at 9:38PM CDT until May 23 at 1:00PM CDT by NWS Chicago IL

Effective: Thu May 21, 2026, 9:38 PM
Expires: Fri May 22, 2026, 5:45 AM

* WHAT...High waves of 3 to 6 feet and dangerous currents occuring at Lake Michigan beaches. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Saturday afternoon. * 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.


Beach Hazards Statement issued May 21 at 3:15PM CDT until May 22 at 4:00AM CDT by NWS Chicago IL

Effective: Thu May 21, 2026, 3:15 PM
Expires: Thu May 21, 2026, 11:15 PM

* WHAT...High waves of 3 to 6 feet and dangerous currents occuring at Lake Michigan beaches. * WHERE...Lake IN and Porter Counties. * WHEN...Through late tonight. * 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 May 21 at 9:38PM CDT until May 22 at 4:00AM CDT by NWS Chicago IL

Effective: Thu May 21, 2026, 9:38 PM
Expires: Fri May 22, 2026, 4:00 AM

* WHAT...High waves of 2 to 5 feet and dangerous currents occuring at Lake Michigan beaches. * WHERE...Lake IN and Porter Counties. * WHEN...Through late tonight. * 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.
Friday, May 22, 2026

Weather Forecast

Sunny
75.9°F
51.6°F
61.6°F
61%
0 in
0%
0%
12.1 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 6.12 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 159.29 μg/m3
Nitrogen Dioxide: 11.89 μg/m3
Sulphur Dioxide: 4.27 μg/m3
Ozone: 72.68 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:48 AM
Sunset: 8:12 PM
Daylight: 14 hrs 46 mins
Moonrise: 11:34 AM
Moon Transit: 6:43 PM
Moonset: 1:13 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
6:13 PM - 8:43 PM

Minor Periods

11:04 AM - 12:34 AM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
67.5°F
56.9°F
60.5°F
81%
0.01 in
82%
0%
9.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 6.52 μg/m3
Carbon Monoxide: 175.37 μg/m3
Nitrogen Dioxide: 10.6 μg/m3
Sulphur Dioxide: 4.07 μg/m3
Ozone: 70.16 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:49 AM
Sunset: 8:13 PM
Daylight: 14 hrs 48 mins
Moonrise: 12:45 AM
Moon Transit: 7:29 PM
Moonset: 1:39 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
6:59 PM - 9:29 PM

Minor Periods

12:15 AM - 1:45 PM
1:09 AM - 2:39 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
77.5°F
57.9°F
66.1°F
71%
0.01 in
84%
0%
5.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 7.95 μg/m3
PM10: 8.14 μg/m3
Carbon Monoxide: 176.77 μg/m3
Nitrogen Dioxide: 17.22 μg/m3
Sulphur Dioxide: 4.51 μg/m3
Ozone: 71.64 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:49 AM
Sunset: 8:14 PM
Daylight: 14 hrs 49 mins
Moonrise: 1:53 PM
Moon Transit: 8:13 PM
Moonset: 2:02 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
7:43 PM - 10:13 PM

Minor Periods

1:23 PM - 2:53 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Moderate rain
78.2°F
62°F
69.6°F
78%
0.28 in
85%
0%
9.6 mph
7.6


Air Quality

AQI: 2 - Moderate
PM2.5: 18.81 μg/m3
PM10: 19.28 μg/m3
Carbon Monoxide: 236.37 μg/m3
Nitrogen Dioxide: 29.62 μg/m3
Sulphur Dioxide: 6.33 μg/m3
Ozone: 73.16 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:49 AM
Sunset: 8:15 PM
Daylight: 14 hrs 51 mins
Moonrise: 2:58 PM
Moon Transit: 8:55 PM
Moonset: 2:23 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
8:25 PM - 10:55 PM

Minor Periods

2:28 PM - 3:58 PM
1:53 AM - 3:23 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
80.2°F
62.6°F
69.7°F
82%
0 in
0%
0%
8.5 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.09 μg/m3
PM10: 17.56 μg/m3
Carbon Monoxide: 225.77 μg/m3
Nitrogen Dioxide: 23.41 μg/m3
Sulphur Dioxide: 5.65 μg/m3
Ozone: 72.08 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:49 AM
Sunset: 8:16 PM
Daylight: 14 hrs 52 mins
Moonrise: 4:02 PM
Moon Transit: 9:36 PM
Moonset: 2:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

9:02 AM - 11:32 AM
9:06 PM - 11:36 PM

Minor Periods

3:32 PM - 5:02 PM
2:12 AM - 3:42 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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