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.

Overcast

31°F

-1°C

Humidity 50%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 26 Feb 12:35 am CST
Extended Forecast for

Mendota IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Northwest wind around 5 mph becoming northeast.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44. East northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 64 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of snow, mainly after noon. Cloudy, with a high near 39.

    High: 39 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow after noon. Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A chance of snow before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Northwest wind around 5 mph becoming northeast.
Thursday
Partly sunny, with a high near 44. East northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 30. Southwest wind around 5 mph, with gusts as high as 10 mph.
Friday
Sunny, with a high near 64. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 29. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.
Saturday
A 40 percent chance of snow, mainly after noon. Cloudy, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
A chance of snow after noon. Mostly cloudy, with a high near 32.
Sunday Night
A chance of snow before midnight. Mostly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 36.
Monday Night
A chance of freezing rain. Mostly cloudy, with a low around 22.
Tuesday
A chance of rain. Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
A chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
12:51 am CST Feb 26, 2026
Forecast Valid:
1am CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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