National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

79°F

26°C

Humidity 23%
Wind Speed E 12 G 18 mph
Barometer 30.28 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Jun 6:41 pm CDT
Extended Forecast for

Mendota IL

  • Tonight

    Tonight: Clear, with a low around 53. East wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Southeast wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. South southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 53. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 82. Southeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 58. South southeast wind around 5 mph, with gusts as high as 10 mph.
Thursday
Sunny, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 65. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85.
Saturday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 63.
Monday
A chance of showers. Mostly sunny, with a high near 89.
Monday Night
A chance of showers. Partly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.13°W
Last Update:
2:56 pm CDT Jun 2, 2026
Forecast Valid:
7pm CDT Jun 2, 2026-6pm CDT Jun 9, 2026
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation