National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

18°F

-8°C

Humidity 68%
Wind Speed NW 3 mph
Barometer 30.01 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 2 Jan 6:45 pm CST
Extended Forecast for

Plainfield IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. North northwest wind around 5 mph becoming calm.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 30. Calm wind becoming west northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 30 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16. Northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 30 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 19. North northwest wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 30. Calm wind becoming west northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Partly cloudy, with a low around 16. Northwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Increasing clouds, with a high near 30. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Sunday Night
Mostly cloudy, with a low around 26. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Mostly cloudy, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 40.
Friday
A chance of rain. Mostly cloudy, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plainfield IL
 41.64°N 88.19°W
Last Update:
7:06 pm CST Jan 2, 2026
Forecast Valid:
7pm CST Jan 2, 2026-6pm CST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation