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

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

31°F

-1°C

Humidity 79%
Wind Speed W 12 mph
Barometer 29.97 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 6 Dec 11:55 am CST
Extended Forecast for

Peru IL

Winter Weather Advisory December 6, 09:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: Mostly cloudy, with a temperature falling to around 29 by 5pm. West wind around 5 mph becoming calm.

    High: 32 °F⇓

    Mostly Cloudy

  • Tonight

    Tonight: Snow before 3am, then snow, possibly mixed with freezing rain between 3am and 5am, then snow after 5am. Low around 25. East southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow Likely
    then Wintry
    Mix

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 17 by 5pm. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F⇓

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 4. Wind chill values as low as -4. North wind 5 to 10 mph becoming light north northeast after midnight. Winds could gust as high as 15 mph.

    Low: 4 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 22. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 31. Breezy.

    Low: 31 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: A chance of rain before noon, then a chance of snow. Mostly cloudy, with a high near 33. Breezy.

    High: 33 °F

    Chance Rain
    and Breezy
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a temperature falling to around 29 by 5pm. West wind around 5 mph becoming calm.
Tonight
Snow before 3am, then snow, possibly mixed with freezing rain between 3am and 5am, then snow after 5am. Low around 25. East southeast wind 5 to 10 mph becoming north northeast after midnight. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.
Sunday
A 40 percent chance of snow before noon. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 17 by 5pm. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 4. Wind chill values as low as -4. North wind 5 to 10 mph becoming light north northeast after midnight. Winds could gust as high as 15 mph.
Monday
Partly sunny, with a high near 22. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
Rain likely. Cloudy, with a low around 31. Breezy.
Wednesday
A chance of rain before noon, then a chance of snow. Mostly cloudy, with a high near 33. Breezy.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
A chance of snow. Mostly cloudy, with a high near 24.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
12:06 pm CST Dec 6, 2025
Forecast Valid:
12pm CST Dec 6, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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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