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

37°F

3°C

Humidity 75%
Wind Speed W 7 mph
Barometer 29.82 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Feb 6:41 am CST
Extended Forecast for

Peru IL

  • Today

    Today: Mostly sunny, with a high near 48. West wind 10 to 15 mph becoming north northwest in the morning. Winds could gust as high as 30 mph.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Northwest wind around 10 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 43. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 28. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of snow before 3pm, then a slight chance of rain and snow. Cloudy, with a high near 43. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 48. West wind 10 to 15 mph becoming north northwest in the morning. Winds could gust as high as 30 mph.
Tonight
Partly cloudy, with a low around 26. Northwest wind around 10 mph.
Wednesday
Sunny, with a high near 43. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 28. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Thursday
A slight chance of snow before 3pm, then a slight chance of rain and snow. Cloudy, with a high near 43. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 27.
Friday
Sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 28.
Saturday
Partly sunny, with a high near 49.
Saturday Night
A chance of rain after midnight. Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Mostly sunny, with a high near 47.
Sunday Night
Mostly clear, with a low around 29.
Washington's Birthday
Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.12°W
Last Update:
5:51 am CST Feb 10, 2026
Forecast Valid:
6am CST Feb 10, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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