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

25°F

-4°C

Humidity 74%
Wind Speed S 12 mph
Barometer 29.81 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 5 Dec 6:35 pm CST
Extended Forecast for

Peru IL

  • Tonight

    Tonight: A slight chance of snow, mixing with freezing rain after 11pm, then gradually ending. Mostly cloudy, with a low around 22. South southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Wintry Mix

  • Saturday

    Saturday: Mostly cloudy, with a high near 28. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.

    High: 28 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Low around 24. Calm wind becoming east around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 24 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 25. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 25 °F

    Chance Snow
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 5. North wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 5 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Cloudy, with a low around 32.

    Low: 32 °F

    Rain Likely

Detailed Forecast

Tonight
A slight chance of snow, mixing with freezing rain after 11pm, then gradually ending. Mostly cloudy, with a low around 22. South southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 28. West northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Snow, mainly after midnight. Low around 24. Calm wind becoming east around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
A 50 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 25. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 5. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Partly sunny, with a high near 21.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Rain likely, mainly after midnight. Cloudy, with a low around 32.
Wednesday
A chance of rain showers before noon, then a chance of snow showers. Mostly cloudy, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly cloudy, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 19.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
6:16 pm CST Dec 5, 2025
Forecast Valid:
6pm CST Dec 5, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation