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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

68°F

20°C

Humidity 69%
Wind Speed W 10 mph
Barometer 30.00 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 20 Jun 8:59 am CDT
Extended Forecast for

Plainfield IL

  • Today

    Today: Sunny, with a high near 78. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 4pm. High near 71. Light east wind becoming east northeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 57. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Monday

    Monday: Mostly sunny, with a high near 74. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly clear, with a low around 56.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 77.

    High: 77 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 78. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 59. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Sunday
Showers, with thunderstorms also possible after 4pm. High near 71. Light east wind becoming east northeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 57. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 74. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A chance of showers after 1am. Mostly clear, with a low around 56.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 77.
Wednesday Night
A chance of showers before 1am. Partly cloudy, with a low around 57.
Thursday
A chance of showers. Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 78.
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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:
8:57 am CDT Jun 20, 2026
Forecast Valid:
9am CDT Jun 20, 2026-6pm CDT Jun 26, 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