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.

Fog/Mist

66°F

19°C

Humidity 100%
Wind Speed W 5 mph
Barometer 29.94 in
Dewpoint 66°F (19°C)
Visibility 5.00 mi
Last update 25 Jun 6:26 am CDT
Extended Forecast for

Mendota IL

  • Today

    Today: Patchy fog before 7am. Otherwise, partly sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Calm wind becoming east around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 9am. Mostly cloudy, with a high near 74. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 80 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 7am. Otherwise, partly sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a low around 59. Calm wind becoming east around 5 mph after midnight. Winds could gust as high as 10 mph.
Friday
A 40 percent chance of showers, mainly after 9am. Mostly cloudy, with a high near 74. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 60. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 80. East wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.1°W
Last Update:
5:11 am CDT Jun 25, 2026
Forecast Valid:
6am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
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Additional Resources

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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