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.

Fair

10°F

-12°C

Humidity 60%
Wind Speed Calm
Barometer 30.44 in
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 4 Dec 11:35 am CST
Extended Forecast for

Peru IL

  • Today

    Today: Sunny, with a high near 18. North wind around 5 mph becoming calm.

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around -4. Wind chill values as low as -15. Calm wind becoming south around 5 mph in the evening. Winds could gust as high as 10 mph.

    Low: -4 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 28. Wind chill values as low as -7. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 28 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. South southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.

    High: 29 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Partly sunny, with a high near 22.

    High: 22 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 18. North wind around 5 mph becoming calm.
Tonight
Increasing clouds, with a low around -4. Wind chill values as low as -15. Calm wind becoming south around 5 mph in the evening. Winds could gust as high as 10 mph.
Friday
Mostly sunny, with a high near 28. Wind chill values as low as -7. South southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 21. South southwest wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly cloudy, with a high near 29. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14.
Sunday
A 20 percent chance of snow before noon. Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around 3.
Monday
Partly sunny, with a high near 22.
Monday Night
A chance of snow. Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 33.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 22.
Wednesday
A chance of rain. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
11:41 am CST Dec 4, 2025
Forecast Valid:
11am CST Dec 4, 2025-6pm CST Dec 10, 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