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.

Overcast

28°F

-2°C

Humidity 43%
Wind Speed SE 8 mph
Barometer 30.32 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 7 Feb 10:41 pm CST
Extended Forecast for

Peru IL

  • Tonight

    Tonight: Cloudy, with a low around 22. East southeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 22 °F

    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 35. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 47. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 47 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 22. East southeast wind around 10 mph, with gusts as high as 15 mph.
Sunday
Partly sunny, with a high near 35. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 24. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.
Monday
Partly sunny, with a high near 47. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 35. South wind around 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A chance of snow after noon. Mostly cloudy, with a high near 40.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 41.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
10:17 pm CST Feb 7, 2026
Forecast Valid:
10pm CST Feb 7, 2026-6pm CST Feb 14, 2026
 
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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