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 95%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 65°F (18°C)
Visibility 4.00 mi
Last update 15 Jul 5:55 am CDT
Extended Forecast for

Mendota IL

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming south around 5 mph in the morning.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 96. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 76. West northwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 76 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming south around 5 mph in the morning.
Tonight
Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 96. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. Southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 76. West northwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 63.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.13°W
Last Update:
4:11 am CDT Jul 15, 2025
Forecast Valid:
6am CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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