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

46°F

8°C

Humidity 50%
Wind Speed SW 6 mph
Barometer 30.07 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 Feb 5:55 pm CST
Extended Forecast for

Plainfield IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 55. Calm wind becoming southwest around 5 mph.

    High: 55 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Calm wind becoming west around 5 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. West northwest wind around 5 mph becoming south in the evening.

    Low: 37 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 29. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 55. Calm wind becoming southwest around 5 mph.
Saturday Night
Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 59. Calm wind becoming west around 5 mph.
Sunday Night
Partly cloudy, with a low around 37. West northwest wind around 5 mph becoming south in the evening.
Washington's Birthday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly cloudy, with a high near 53.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A chance of showers before noon. Partly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A chance of showers. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plainfield IL
 41.59°N 88.22°W
Last Update:
3:11 pm CST Feb 13, 2026
Forecast Valid:
6pm CST Feb 13, 2026-6pm CST Feb 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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