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

33°F

1°C

Humidity 52%
Wind Speed SE 12 mph
Barometer 30.43 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 24 Mar 1:00 am CDT
Extended Forecast for

4 Miles SSW Mendota IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 30. Southeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. Southeast wind around 5 mph.

    Low: 37 °F

    Mostly 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: Partly cloudy, with a low around 54. South wind 5 to 10 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • 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. Chance of precipitation is 40%.

    Low: 32 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 30. Southeast wind around 5 mph, with gusts as high as 15 mph.
Tuesday
Partly sunny, with a high near 54. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 37. 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
Partly cloudy, with a low around 54. South wind 5 to 10 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 79.
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. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 53.
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 42.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Mendota IL
 41.5°N 89.13°W
Last Update:
3:06 am CDT Mar 24, 2026
Forecast Valid:
3am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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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