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

N/A

Humidity NA
Wind Speed NW 10 mph
Barometer 30.24 in
Dewpoint N/A
Visibility 10.00 mi
Last update 25 Jan 9:55 pm CST
Extended Forecast for

Mendota IL

Cold Weather Advisory January 26, 12:00am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around -4. Wind chill values as low as -21. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: -4 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 8. Wind chill values as low as -23. West northwest wind around 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 8 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a temperature rising to around 12 by 3am. Wind chill values as low as -12. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 6 °F⇑

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 16. Wind chill values as low as -4. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 16 °F

    Partly Sunny
    and Blustery

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 1. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 1 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Partly sunny, with a high near 16.

    High: 16 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 13.

    High: 13 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -4. Wind chill values as low as -21. West northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny and cold, with a high near 8. Wind chill values as low as -23. West northwest wind around 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a temperature rising to around 12 by 3am. Wind chill values as low as -12. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 16. Wind chill values as low as -4. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 1. West wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 16.
Wednesday Night
Partly cloudy, with a low around -2.
Thursday
Mostly sunny, with a high near 13.
Thursday Night
Partly cloudy, with a low around 0.
Friday
Mostly sunny, with a high near 15.
Friday Night
Mostly clear, with a low around 3.
Saturday
Sunny, with a high near 21.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
9:51 pm CST Jan 25, 2026
Forecast Valid:
10pm CST Jan 25, 2026-6pm CST Feb 1, 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