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

84°F

29°C

Humidity 45%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 30 Jul 3:45 pm CDT
Extended Forecast for

Plainfield IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. South southeast wind around 5 mph becoming calm after midnight.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 4pm. Increasing clouds, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 80 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, then showers and possibly a thunderstorm after 10pm. Low around 65. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 65 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 73. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 64. North northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 64. South southeast wind around 5 mph becoming calm after midnight.
Friday
Showers likely, mainly after 4pm. Increasing clouds, with a high near 80. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, then showers and possibly a thunderstorm after 10pm. Low around 65. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm. High near 73. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 64. North northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plainfield IL
 41.62°N 88.22°W
Last Update:
2:46 pm CDT Jul 30, 2026
Forecast Valid:
4pm CDT Jul 30, 2026-6pm CDT Aug 6, 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