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.

Overcast

50°F

10°C

Humidity 43%
Wind Speed NW 3 mph
Barometer 30.20 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 12 Feb 4:02 pm CST
Extended Forecast for

Mendota IL

  • Tonight

    Tonight: Mostly clear, with a low around 27. East southeast wind around 5 mph becoming calm.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. West southwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly cloudy, with a high near 53. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 35. Southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. East southeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 52. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 32. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 53. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
A slight chance of rain between 9pm and midnight. Mostly cloudy, with a low around 35. Southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 34.
Washington's Birthday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 63. Breezy.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A chance of showers. Partly sunny, with a high near 49.
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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:
3:11 pm CST Feb 12, 2026
Forecast Valid:
4pm CST Feb 12, 2026-6pm CST Feb 19, 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