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

28°F

-2°C

Humidity 72%
Wind Speed W 14 G 18 mph
Barometer 29.70 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 25 Feb 7:55 am CST
Extended Forecast for

Peru IL

  • Today

    Today: Sunny, with a high near 38. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 38 °F

    Sunny

  • Tonight

    Tonight: A 40 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 22. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 22 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 45. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon.

    High: 62 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow after noon. Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Today
Sunny, with a high near 38. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A 40 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 22. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Thursday
Mostly sunny, with a high near 45. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 29. Southwest wind around 5 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 62. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon.
Friday Night
Mostly clear, with a low around 30.
Saturday
A 30 percent chance of snow after noon. Partly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A chance of snow after noon. Partly sunny, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
Monday
Mostly cloudy, with a high near 34.
Monday Night
A chance of snow. Mostly cloudy, with a low around 20.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
7:36 am CST Feb 25, 2026
Forecast Valid:
8am CST Feb 25, 2026-6pm CST Mar 3, 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