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

39°F

4°C

Humidity 60%
Wind Speed W 12 G 17 mph
Barometer 30.01 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 13 Mar 8:15 pm CDT
Extended Forecast for

Mendota IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow between 9am and noon. Cloudy, with a high near 42. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Snow then
    Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am. Cloudy, with a low around 38. East southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, then showers and possibly a thunderstorm after 10am. High near 61. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.

    High: 61 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow after 1am. Patchy blowing snow after 1am. Low around 20. Windy, with a south southwest wind 20 to 30 mph becoming northwest after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%.

    Low: 20 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 23. Windy. Chance of precipitation is 60%.

    High: 23 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 7. Blustery.

    Low: 7 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 29. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Saturday
A slight chance of snow between 9am and noon. Cloudy, with a high near 42. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Cloudy, with a low around 38. East southeast wind around 15 mph, with gusts as high as 25 mph.
Sunday
Rain likely, then showers and possibly a thunderstorm after 10am. High near 61. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow after 1am. Patchy blowing snow after 1am. Low around 20. Windy, with a south southwest wind 20 to 30 mph becoming northwest after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 23. Windy. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 7. Blustery.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, 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 89.1°W
Last Update:
4:21 pm CDT Mar 13, 2026
Forecast Valid:
8pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation