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.

Partly Cloudy

72°F

22°C

Humidity 36%
Wind Speed SW 16 mph
Barometer 29.81 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 25 Mar 5:35 pm CDT
Extended Forecast for

Mendota IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Partly sunny, with a high near 72. South southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 72 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 78. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 10pm, then showers likely between 10pm and 1am. Some of the storms could be severe. Low around 31. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 31 °F

    Blustery.
    Severe
    Thunderstorms
    then Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 47. North wind around 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 25.

    Low: 25 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Partly sunny, with a high near 72. South southwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
A slight chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 78. South southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms before 10pm, then showers likely between 10pm and 1am. Some of the storms could be severe. Low around 31. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 47. North wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 25.
Saturday
Sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 74.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Tuesday
A chance of showers. Mostly cloudy, with a high near 72.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55.
Wednesday
A chance of showers. Mostly cloudy, with a high near 69. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.13°W
Last Update:
2:41 pm CDT Mar 25, 2026
Forecast Valid:
5pm CDT Mar 25, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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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