National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

28°F

-2°C

Humidity 70%
Wind Speed NW 16 G 21 mph
Barometer 30.25 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 9 Nov 11:35 pm CST
Extended Forecast for

Mendota IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Mostly Cloudy
    and Blustery

  • Monday

    Monday: Mostly sunny, with a high near 35. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 35 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 23. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.

    Low: 23 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 44 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 35. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 23. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.
Veterans Day
Cloudy, then gradually becoming mostly sunny, with a high near 44. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 34. West wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 65.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 46.
Sunday
A chance of rain. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.13°W
Last Update:
9:31 pm CST Nov 9, 2025
Forecast Valid:
11pm CST Nov 9, 2025-6pm CST Nov 16, 2025
 
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