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

63°F

17°C

Humidity 64%
Wind Speed SW 13 mph
Barometer 29.76 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 16 Jun 5:03 am CDT
Extended Forecast for

Mendota IL

  • Today

    Today: Scattered showers and thunderstorms between 7am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 72. Breezy, with a south southwest wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 50%.

    High: 72 °F

    Breezy.
    Scattered
    Showers then
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. West northwest wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 73. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    High: 73 °F

    Severe
    Thunderstorms
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 73. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 73 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms between 7am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 72. Breezy, with a south southwest wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 50%.
Tonight
Partly cloudy, with a low around 55. West northwest wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. High near 73. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 73. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 56.
Juneteenth
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers after 1am. Partly cloudy, with a low around 60.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 78.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Monday
A chance of showers. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.1°W
Last Update:
3:56 am CDT Jun 16, 2026
Forecast Valid:
5am CDT Jun 16, 2026-6pm CDT Jun 22, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation