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

43°F

6°C

Humidity 43%
Wind Speed E 8 mph
Barometer 30.18 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 24 Mar 10:35 pm CDT
Extended Forecast for

2 Miles ESE Mendota IL

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Southeast wind around 5 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 54 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 32. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 26.

    Low: 26 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. Southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 70. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. South wind around 5 mph, with gusts as high as 15 mph.
Thursday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 32. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 47.
Friday Night
Clear, with a low around 26.
Saturday
Sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 70.
Monday Night
A chance of showers. Mostly cloudy, with a low around 49.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Mendota IL
 41.54°N 89.07°W
Last Update:
8:46 pm CDT Mar 24, 2026
Forecast Valid:
10pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation