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.

Mostly Cloudy

43°F

6°C

Humidity 62%
Wind Speed S 10 mph
Barometer 30.22 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 29 Mar 7:55 am CDT
Extended Forecast for

Peru IL

  • Today

    Today: Mostly sunny, with a high near 66. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind 10 to 15 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 80. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    High: 79 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 49.

    High: 49 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 66. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind 10 to 15 mph.
Monday
Sunny, with a high near 80. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 48.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 34.
Thursday
Showers likely. Mostly cloudy, with a high near 49.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 65.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49.
Saturday
Showers likely. Mostly cloudy, with a high near 65. Breezy.
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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:
4:56 am CDT Mar 29, 2026
Forecast Valid:
8am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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