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
0.0ft 0.0 m
Calm / Flat Smooth waters with minimal wave motion.
Wave Period 4.4s
Wave Direction 321° NW
Swell Waves
0.0 ft
6.4s • 321° NW
Wind Waves / Chop
0.0 ft
-- • 324° NW
High and low tide forecasts are not applicable for freshwater lake stations.

5-Day Marine Wave Forecast

Today
Nov 15
0.1 ft
4.5s • WSW
Mon
Nov 16
0.1 ft
4.5s • SSW
Tue
Nov 17
0.1 ft
1.7s • SSW
Wed
Nov 18
0.9 ft
2.3s • S
Thu
Nov 19
1.0 ft
2.5s • SSW

Weather for Lockport, Illinois

Current Weather

30°F
Clear
Conditions: Clear
Humidity: 94%
Feels Like: 24.4°F
Wind: WNW 3 mph
Wind Gusts: 6.3 mph
Pressure: 30.4 in
Precipitation: 0 in
Cloud Cover: 10%
Visibility: 7.6 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Sun
H: 50°F
L: 29°F
Overcast
Mon
H: 51°F
L: 29°F
Overcast
Tue
H: 56°F
L: 39°F
Overcast
Wed
H: 59°F
L: 41°F
Overcast
Thu
H: 63°F
L: 48°F

Air Quality

EPA Index 1 • Good

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

PM2.5
9.5 μg/m³
Good
PM10
9.7 μg/m³
Good
Ozone (O3)
2 μg/m³
Photochemical
NO2
45.4 μg/m³
Nitrogen Dioxide
SO2
2.2 μg/m³
Sulfur Dioxide
CO
228 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
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 37.4°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 4.9 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
18 μg/m³
Moderate
PM10
18.3 μg/m³
Good
Ozone (O3)
17.6 μg/m³
Photochemical
NO2
40.6 μg/m³
Nitrogen Dioxide
SO2
5 μg/m³
Sulfur Dioxide
CO
264.8 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: Overcast
Average Temperature: 37.8°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 7.5 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
22.2 μg/m³
Moderate
PM10
22.5 μg/m³
Good
Ozone (O3)
17.7 μg/m³
Photochemical
NO2
37.2 μg/m³
Nitrogen Dioxide
SO2
5.2 μg/m³
Sulfur Dioxide
CO
282.6 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: 45.9°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 10.2 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
10.9 μg/m³
Good
PM10
10.9 μg/m³
Good
Ozone (O3)
31.5 μg/m³
Photochemical
NO2
20.2 μg/m³
Nitrogen Dioxide
SO2
2.5 μg/m³
Sulfur Dioxide
CO
208.7 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
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 49.6°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 2.9

Air Quality

EPA Index 2 • Moderate
PM2.5
9 μg/m³
Good
PM10
9.1 μg/m³
Good
Ozone (O3)
51.5 μg/m³
Photochemical
NO2
12.4 μg/m³
Nitrogen Dioxide
SO2
2 μg/m³
Sulfur Dioxide
CO
185.9 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 45m daylight
Sunrise 6:45 AM
Solar Noon 11:37 AM
Sunset 4:30 PM
Moon
First Quarter • 65%
Moonrise 1:12 PM
Transit 7:00 PM
Moonset 1:37 AM

Best Times for Fishing or Hunting

Major Periods

6:08 AM - 8:38 AM
6:30 PM - 9:00 PM

Minor Periods

1:07 AM - 2:37 AM
12:42 PM - 2:12 PM
Action Rating:
Fair Action 2/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 54°F
Average Humidity: 59%
Chance of Rain: 9%
Wind: 16.3 mph
UV Index: 2.9

Air Quality

EPA Index 1 • Good
PM2.5
6.6 μg/m³
Good
PM10
7.1 μg/m³
Good
Ozone (O3)
60.7 μg/m³
Photochemical
NO2
9.5 μg/m³
Nitrogen Dioxide
SO2
1.9 μg/m³
Sulfur Dioxide
CO
194.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 43m daylight
Sunrise 6:46 AM
Solar Noon 11:37 AM
Sunset 4:29 PM
Moon
Waxing Gibbous • 75%
Moonrise 1:33 PM
Transit 12:00 PM
Moonset 12:58 AM

Best Times for Fishing or Hunting

Major Periods

11:30 AM - 2:00 PM
11:55 PM - 2:25 AM

Minor Periods

12:28 AM - 1:58 AM
1:03 PM - 2:33 PM
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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