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 55%
Wind Speed NW 8 mph
Barometer 30.38 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 4 Feb 2:02 pm CST
Extended Forecast for

Mendota IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 28. North northwest wind around 5 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 15. Northwest wind around 5 mph becoming calm.

    Low: 15 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Scattered snow showers, mainly before noon. Cloudy, with a high near 33. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 33 °F

    Scattered
    Snow Showers

  • Thursday Night

    Thursday Night: A slight chance of snow showers, freezing rain, and sleet between midnight and 3am, then a slight chance of snow showers and freezing rain after 3am. Mostly cloudy, with a low around 27. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Friday

    Friday: A slight chance of snow showers and freezing rain before 9am, then a slight chance of snow showers. Mostly cloudy, with a high near 40. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Wintry Mix
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 28. North northwest wind around 5 mph.
Tonight
Increasing clouds, with a low around 15. Northwest wind around 5 mph becoming calm.
Thursday
Scattered snow showers, mainly before noon. Cloudy, with a high near 33. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of snow showers, freezing rain, and sleet between midnight and 3am, then a slight chance of snow showers and freezing rain after 3am. Mostly cloudy, with a low around 27. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow showers and freezing rain before 9am, then a slight chance of snow showers. Mostly cloudy, with a high near 40. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 28.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Mostly clear, with a low around 25.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
1:40 pm CST Feb 4, 2026
Forecast Valid:
2pm CST Feb 4, 2026-6pm CST Feb 10, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation