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

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

25°F

-4°C

Humidity 69%
Wind Speed SE 12 mph
Barometer 30.26 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 8 Feb 9:44 pm CST
Extended Forecast for

Peru IL

  • Tonight

    Tonight: Increasing clouds, with a low around 23. East southeast wind 5 to 10 mph.

    Low: 23 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 45. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow after noon. Cloudy, with a high near 39.

    High: 39 °F

    Cloudy then
    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 23. East southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 45. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 34. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A chance of snow after noon. Cloudy, with a high near 39.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A chance of rain. Mostly sunny, with a high near 41.
Saturday Night
A chance of rain. Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 43.
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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:
9:41 pm CST Feb 8, 2026
Forecast Valid:
10pm CST Feb 8, 2026-6pm CST Feb 15, 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