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)

Marine Weather for the Des Plaines River in Lockport, IL

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
0.7ft 0.2 m
Calm / Flat Smooth waters with minimal wave motion.
Wave Period 2.1s
Wave Direction 338° NNW
Swell Waves
0.1 ft
2.3s • 16° NNE
Wind Waves / Chop
0.7 ft
1.9s • 336° NNW
High and low tide forecasts are not applicable for freshwater lake stations.

5-Day Marine Wave Forecast

Today
Nov 13
0.7 ft
2.2s • NNW
Sat
Nov 14
0.3 ft
2.1s • NNW
Sun
Nov 15
0.1 ft
4.6s • W
Mon
Nov 16
0.1 ft
4.6s • SSW
Tue
Nov 17
0.1 ft
2.9s • S

Weather for Lockport, Illinois

Current Weather

36.9°F
Overcast
Conditions: Overcast
Humidity: 76%
Feels Like: 27.1°F
Wind: N 13.2 mph
Wind Gusts: 28.4 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 12.6 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Fri
H: 45°F
L: 31°F
Mainly Sunny
Sat
H: 48°F
L: 30°F
Partly Cloudy
Sun
H: 49°F
L: 35°F
Sunny
Mon
H: 51°F
L: 36°F
Overcast
Tue
H: 54°F
L: 38°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
3.2 μg/m³
Good
PM10
3.4 μg/m³
Good
Ozone (O3)
56 μg/m³
Photochemical
NO2
8.1 μg/m³
Nitrogen Dioxide
SO2
1 μg/m³
Sulfur Dioxide
CO
125 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
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 38.5°F
Average Humidity: 64%
Chance of Rain: 11%
Wind: 12.8 mph
UV Index: 2.8

Air Quality

EPA Index 1 • Good
PM2.5
3.4 μg/m³
Good
PM10
3.5 μg/m³
Good
Ozone (O3)
51.5 μg/m³
Photochemical
NO2
13.7 μg/m³
Nitrogen Dioxide
SO2
1.3 μg/m³
Sulfur Dioxide
CO
135.1 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: Mainly Sunny
Average Temperature: 37°F
Average Humidity: 79%
Chance of Rain: 2%
Wind: 9.8 mph
UV Index: 3

Air Quality

EPA Index 1 • Good
PM2.5
6.7 μg/m³
Good
PM10
6.8 μg/m³
Good
Ozone (O3)
30.6 μg/m³
Photochemical
NO2
25.5 μg/m³
Nitrogen Dioxide
SO2
2 μg/m³
Sulfur Dioxide
CO
160.3 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: Partly Cloudy
Average Temperature: 41°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 4.2 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
18.4 μg/m³
Moderate
PM10
18.7 μg/m³
Good
Ozone (O3)
17.3 μg/m³
Photochemical
NO2
39.5 μg/m³
Nitrogen Dioxide
SO2
4.6 μg/m³
Sulfur Dioxide
CO
266.2 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
Monday, November 16, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 43°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 5.2 mph
UV Index: 2.9

Air Quality

EPA Index 2 • Moderate
PM2.5
21.6 μg/m³
Moderate
PM10
21.9 μg/m³
Good
Ozone (O3)
15.7 μg/m³
Photochemical
NO2
36.8 μg/m³
Nitrogen Dioxide
SO2
4.3 μg/m³
Sulfur Dioxide
CO
339.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 49m daylight
Sunrise 6:43 AM
Solar Noon 11:37 AM
Sunset 4:32 PM
Moon
First Quarter • 42%
Moonrise 12:28 PM
Transit 5:34 PM
Moonset 10:50 PM

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
5:04 PM - 7:34 PM

Minor Periods

11:58 AM - 1:28 PM
10:20 PM - 11:50 PM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 44.8°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 7.3 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
11.6 μg/m³
Good
PM10
11.7 μg/m³
Good
Ozone (O3)
27.8 μg/m³
Photochemical
NO2
23.4 μg/m³
Nitrogen Dioxide
SO2
2.7 μg/m³
Sulfur Dioxide
CO
244.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 47m daylight
Sunrise 6:44 AM
Solar Noon 11:37 AM
Sunset 4:31 PM
Moon
First Quarter • 54%
Moonrise 12:51 PM
Transit 6:17 PM
Moonset 11:53 PM

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
5:47 PM - 8:17 PM

Minor Periods

12:21 PM - 1:51 PM
11:23 PM - 12:53 AM
Action Rating:
Fair Action 2/5
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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