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.

Fair

68°F

20°C

Humidity 20%
Wind Speed SW 15 G 23 mph
Barometer 29.75 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 27 Feb 2:55 pm CST
Extended Forecast for

Mendota IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, with a high near 41. North wind 5 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 35. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after midnight. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 44.

    High: 44 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 28. West wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph.
Saturday
Mostly cloudy, with a high near 41. North wind 5 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 21. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 35. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 42.
Monday Night
A chance of rain after midnight. Mostly cloudy, with a low around 31.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 44.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 32.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49.
Wednesday Night
Rain likely. Cloudy, with a low around 39.
Thursday
Rain likely. Mostly cloudy, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.13°W
Last Update:
1:51 pm CST Feb 27, 2026
Forecast Valid:
3pm CST Feb 27, 2026-6pm CST Mar 5, 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