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

28°F

-2°C

Humidity 59%
Wind Speed S 7 mph
Barometer 30.15 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 9 Feb 10:01 am CST
Extended Forecast for

Mendota IL

  • Today

    Today: Partly sunny, with a high near 42. South wind 5 to 10 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 46 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. North northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Cloudy, with a high near 39.

    High: 39 °F

    Cloudy then
    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 42. South wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 35. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 46. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 26. North northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow after noon. Cloudy, with a high near 39.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 43.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
9:26 am CST Feb 9, 2026
Forecast Valid:
10am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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Additional Resources

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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