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

-2°F

-19°C

Humidity 37%
Wind Speed NW 10 mph
Barometer 30.75 in
Dewpoint -22°F (-30°C)
Visibility 10.00 mi
Wind Chill-18°F (-28°C)
Last update 23 Jan 4:22 pm CST
Extended Forecast for

Mendota IL

Cold Weather Advisory January 23, 04:33pm until January 24, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 23, 04:33pm until January 24, 09:00am

    NOW until 9:00am Sat

    Cold Weather Advisory

  • Tonight

    Low: -7 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Cloudy and cold, with a high near 7. Wind chill values as low as -19. North wind around 5 mph becoming east in the afternoon.

    High: 7 °F

    Cloudy then
    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Cloudy, with a low around 5. Wind chill values as low as -8. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 5 °F

    Snow Likely

  • Sunday

    Sunday: A 50 percent chance of snow. Cloudy, with a high near 14. Wind chill values as low as -8. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 14 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -1. Northwest wind around 15 mph, with gusts as high as 20 mph.

    Low: -1 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 9.

    High: 9 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3.

    Low: 3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 19.

    High: 19 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around -7. Wind chill values as low as -22. North wind 5 to 10 mph.
Saturday
A 30 percent chance of snow after noon. Cloudy and cold, with a high near 7. Wind chill values as low as -19. North wind around 5 mph becoming east in the afternoon.
Saturday Night
Snow likely, mainly after midnight. Cloudy, with a low around 5. Wind chill values as low as -8. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Sunday
A 50 percent chance of snow. Cloudy, with a high near 14. Wind chill values as low as -8. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around -1. Northwest wind around 15 mph, with gusts as high as 20 mph.
Monday
Sunny and cold, with a high near 9.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Partly sunny, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 2.
Wednesday
Partly sunny, with a high near 14.
Wednesday Night
Partly cloudy, with a low around 1.
Thursday
Mostly sunny, with a high near 14.
Thursday Night
Partly cloudy, with a low around 2.
Friday
Mostly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
3:11 pm CST Jan 23, 2026
Forecast Valid:
4pm CST Jan 23, 2026-6pm CST Jan 30, 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