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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Peru IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 3pm. Mostly cloudy, with a high near 68. Northeast wind around 10 mph.

    High: 68 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of rain after 4am. Mostly cloudy, with a low around 57. East northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 1pm. High near 63. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 47. Northwest wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A 20 percent chance of rain before 1pm. Partly sunny, with a high near 55. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.

    High: 55 °F

    Slight Chance
    Rain and
    Breezy

  • Friday Night

    Friday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 3pm. Mostly cloudy, with a high near 68. Northeast wind around 10 mph.
Tonight
A 40 percent chance of rain after 4am. Mostly cloudy, with a low around 57. East northeast wind around 10 mph, with gusts as high as 15 mph.
Thursday
Rain, with thunderstorms also possible after 1pm. High near 63. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 47. Northwest wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of rain before 1pm. Partly sunny, with a high near 55. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph.
Friday Night
Patchy frost after 3am. Otherwise, mostly clear, with a low around 34.
Saturday
Areas of frost before 9am. Otherwise, sunny, with a high near 56.
Saturday Night
Clear, with a low around 40.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.34°N 89.11°W
Last Update:
9:26 am CDT Oct 14, 2026
Forecast Valid:
12pm CDT Oct 14, 2026-6pm CDT Oct 20, 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