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

Storm Systems Continue to Impact the Pacific Northwest; Lake Effect Snow Continues

A second Pacific cold front will cross the Pacific Northwest Wednesday followed by another atmospheric river. Each of these features will bring additional periods of gusty winds, mountain snow, and heavy to excessive rainfall with renewed flooding. Heavy lake effect snow continues into Tuesday east of Lakes Erie and Ontario. Read More >

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

16°F

-9°C

Humidity 86%
Wind Speed SE 3 mph
Barometer 30.10 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 15 Dec 10:30 pm CST
Extended Forecast for

Plainfield IL

  • Tonight

    Tonight: Mostly clear, with a low around 13. Calm wind becoming south around 5 mph after midnight.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 31. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

  • Thursday

    Thursday: Rain before noon, then a chance of rain and snow. High near 47. Breezy. Chance of precipitation is 90%.

    High: 47 °F

    Rain then
    Chance
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. Breezy.

    Low: 13 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 13. Calm wind becoming south around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 35. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 29. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 38. West wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 31. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Rain before noon, then a chance of rain and snow. High near 47. Breezy. Chance of precipitation is 90%.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. Breezy.
Friday
Mostly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Mostly cloudy, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plainfield IL
 41.62°N 88.22°W
Last Update:
8:41 pm CST Dec 15, 2025
Forecast Valid:
10pm CST Dec 15, 2025-6pm CST Dec 22, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation