National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

65°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 64°F (18°C)
Visibility 7.00 mi
Last update 14 Jul 3:55 am CDT
Extended Forecast for

Peru IL

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 88. Calm wind.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 15 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. South southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 88. Calm wind.
Tonight
Mostly clear, with a low around 66. Calm wind.
Tuesday
Sunny, with a high near 88. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 70. South southeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Peru IL
 41.32°N 89.14°W
Last Update:
3:41 am CDT Jul 14, 2025
Forecast Valid:
4am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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