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

24°F

-4°C

Humidity 55%
Wind Speed S 5 mph
Barometer 30.18 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 17 Mar 6:55 pm CDT
Extended Forecast for

Mendota IL

  • Tonight

    Tonight: Snow, mainly between 11pm and 4am. Temperature rising to around 24 by 4am. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 20 °F⇑

    Snow Likely
    then Snow

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 42. South southeast wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 42 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 33. West wind around 5 mph becoming south after midnight.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 50. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 50 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35. North wind around 5 mph becoming southeast after midnight. Winds could gust as high as 10 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly between 11pm and 4am. Temperature rising to around 24 by 4am. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 42. South southeast wind around 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 33. West wind around 5 mph becoming south after midnight.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 50. South wind around 5 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 35. North wind around 5 mph becoming southeast after midnight. Winds could gust as high as 10 mph.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
6:06 pm CDT Mar 17, 2026
Forecast Valid:
7pm CDT Mar 17, 2026-6pm CDT Mar 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation