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

32°F

0°C

Humidity 44%
Wind Speed SE 17 mph
Barometer 30.26 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 8 Feb 12:22 pm CST
Extended Forecast for

Peru IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 35. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 24 °F

    Mostly Cloudy

  • 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: Partly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow after noon. Mostly cloudy, with a high near 41.

    High: 41 °F

    Cloudy then
    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 35. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 24. East southeast wind 5 to 10 mph, with gusts as high as 15 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
Partly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A chance of snow after noon. Mostly cloudy, with a high near 41.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Mostly sunny, with a high near 42.
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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:
11:51 am CST Feb 8, 2026
Forecast Valid:
12pm CST Feb 8, 2026-6pm CST Feb 14, 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