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

N/A

Humidity NA
Wind Speed S 9 mph
Barometer 30.10 in
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Oct 11:15 am CDT
Extended Forecast for

Peru IL

  • Today

    Today: Partly sunny, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Calm wind becoming south southwest around 5 mph in the evening. Winds could gust as high as 15 mph.

    Low: 61 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 82. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 55. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 81. Calm wind.
Sunday Night
Mostly clear, with a low around 61. Calm wind becoming south southwest around 5 mph in the evening. Winds could gust as high as 15 mph.
Columbus Day
Mostly sunny, with a high near 86. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 77.
Tuesday Night
A chance of showers after 1am. Mostly clear, with a low around 54.
Wednesday
A chance of showers. Partly sunny, with a high near 70.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 53.
Thursday
Showers likely. Mostly cloudy, with a high near 70.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.34°N 89.14°W
Last Update:
10:51 am CDT Oct 10, 2026
Forecast Valid:
11am CDT Oct 10, 2026-6pm CDT Oct 16, 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