Water Temperature of the Des Plaines River in Lockport, IL

Current Water Temperature

33.9°F 1.1°C
Frigid Dangerously Cold
33.9°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Sunday, January 21, 2024, 9:00 AM CST

Temperature Locations

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Local Points of Interest

Lockport Dam; Crest Hill, IL; Joliet, IL

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Des Plaines River

Station Name: Lockport L&D 2
Data Source: USGS

Elevation Above Sea Level: 561 feet

Nearest Address:
South Powerhouse Drive
Lockport, IL 60434
Will County

GPS Coordinates: 41.5697, -88.0783

Nearby Water Temperatures

Des Plaines River, Joliet, IL (2.3 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (5 mi)
Des Plaines River, Rockdale, IL (5 mi)
Des Plaines River, Channahon, IL (12.8 mi)
Kankakee River, Morris, IL (15.7 mi)
Kankakee River, Wilmington, IL (16.4 mi)
Cal-Sag Channel, Blue Island, IL (21.8 mi)
Kankakee River, Custer Park, IL (22.5 mi)
Hanson Gravel Pit, Morris, IL (25.9 mi)
Grand Calumet River, Chicago, IL (27.3 mi)
Chicago River, Chicago, IL (27.4 mi)
Plum Creek, Dyer, IN (29.7 mi)
Grand Calumet River, Hammond, IN (30.1 mi)
Hart Ditch, Munster, IN (30.9 mi)
Indiana Harbor Canal, East Chicago, IN (32 mi)

Weather for Lockport, Illinois

Current Weather

38.7°F
Overcast
Conditions: Overcast
Humidity: 94%
Feels Like: 34.5°F
Wind: SSW 2.9 mph
Wind Gusts: 6.3 mph
Pressure: 29.97 in
Precipitation: 0 in
Cloud Cover: 81%
Visibility: 7.6 mi
UV Index: 0

Weather Forecast

Moderate Drizzle
Wed
H: 54°F
L: 38°F
Moderate Drizzle
Thu
H: 45°F
L: 35°F
Overcast
Fri
H: 42°F
L: 31°F
Sunny
Sat
H: 46°F
L: 31°F
Mainly Sunny
Sun
H: 49°F
L: 34°F

Air Quality

EPA Index 2 • Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

PM2.5
48.1 μg/m³
Unhealthy for Sensitive Groups
PM10
48.4 μg/m³
Good
Ozone (O3)
0 μg/m³
Photochemical
NO2
41.7 μg/m³
Nitrogen Dioxide
SO2
8.6 μg/m³
Sulfur Dioxide
CO
452 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 59m daylight
Sunrise 6:37 AM
Solar Noon 11:36 AM
Sunset 4:36 PM
Moon
New • 2%
Moonrise 9:14 AM
Transit 1:32 PM
Moonset 5:50 PM

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
1:02 PM - 3:32 PM

Minor Periods

8:44 AM - 10:14 AM
5:20 PM - 6:50 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 45.1°F
Average Humidity: 86%
Chance of Rain: 75%
Wind: 11.1 mph
UV Index: 1.4

Air Quality

EPA Index 2 • Moderate
PM2.5
23.2 μg/m³
Moderate
PM10
23.6 μg/m³
Good
Ozone (O3)
18.6 μg/m³
Photochemical
NO2
38.7 μg/m³
Nitrogen Dioxide
SO2
7.7 μg/m³
Sulfur Dioxide
CO
337.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 59m daylight
Sunrise 6:37 AM
Solar Noon 11:36 AM
Sunset 4:36 PM
Moon
New • 2%
Moonrise 9:14 AM
Transit 1:32 PM
Moonset 5:50 PM

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
1:02 PM - 3:32 PM

Minor Periods

8:44 AM - 10:14 AM
5:20 PM - 6:50 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 39.9°F
Average Humidity: 81%
Chance of Rain: 21%
Wind: 18.9 mph
UV Index: 1.8

Air Quality

EPA Index 2 • Moderate
PM2.5
3.2 μg/m³
Good
PM10
3.3 μg/m³
Good
Ozone (O3)
47.8 μg/m³
Photochemical
NO2
12.8 μg/m³
Nitrogen Dioxide
SO2
1.3 μg/m³
Sulfur Dioxide
CO
137.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 57m daylight
Sunrise 6:38 AM
Solar Noon 11:36 AM
Sunset 4:35 PM
Moon
Waxing Crescent • 6%
Moonrise 10:07 AM
Transit 2:24 PM
Moonset 6:43 PM

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:54 PM - 4:24 PM

Minor Periods

9:37 AM - 11:07 AM
6:13 PM - 7:43 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 36.1°F
Average Humidity: 65%
Chance of Rain: 1%
Wind: 12.3 mph
UV Index: 2.9

Air Quality

EPA Index 1 • Good
PM2.5
2.8 μg/m³
Good
PM10
2.9 μg/m³
Good
Ozone (O3)
54.3 μg/m³
Photochemical
NO2
12.3 μg/m³
Nitrogen Dioxide
SO2
1.2 μg/m³
Sulfur Dioxide
CO
139.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 55m daylight
Sunrise 6:39 AM
Solar Noon 11:36 AM
Sunset 4:34 PM
Moon
Waxing Crescent • 13%
Moonrise 10:53 AM
Transit 3:14 PM
Moonset 7:40 PM

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
2:44 PM - 5:14 PM

Minor Periods

10:23 AM - 11:53 AM
7:10 PM - 8:40 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 37.6°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 3

Air Quality

EPA Index 1 • Good
PM2.5
6.8 μg/m³
Good
PM10
6.9 μg/m³
Good
Ozone (O3)
32 μg/m³
Photochemical
NO2
25.2 μg/m³
Nitrogen Dioxide
SO2
2.1 μg/m³
Sulfur Dioxide
CO
201.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 53m daylight
Sunrise 6:40 AM
Solar Noon 11:36 AM
Sunset 4:33 PM
Moon
Waxing Crescent • 21%
Moonrise 11:30 AM
Transit 4:03 PM
Moonset 8:43 PM

Best Times for Fishing or Hunting

Major Periods

3:09 AM - 5:39 AM
3:33 PM - 6:03 PM

Minor Periods

11:00 AM - 12:30 PM
8:13 PM - 9:43 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Mainly Sunny
Average Temperature: 40.6°F
Average Humidity: 66%
Chance of Rain: 2%
Wind: 4.7 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
9 μg/m³
Good
PM10
9.2 μg/m³
Good
Ozone (O3)
19 μg/m³
Photochemical
NO2
32.6 μg/m³
Nitrogen Dioxide
SO2
2.6 μg/m³
Sulfur Dioxide
CO
229.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 6:42 AM
Solar Noon 11:36 AM
Sunset 4:32 PM
Moon
Waxing Crescent • 31%
Moonrise 12:01 PM
Transit 4:49 PM
Moonset 9:45 PM

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
4:19 PM - 6:49 PM

Minor Periods

11:31 AM - 1:01 PM
9:15 PM - 10:45 PM
Action Rating:
Very Good 4/5
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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