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.

Overcast

51°F

11°C

Humidity 71%
Wind Speed S 8 mph
Barometer 29.94 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 30 Mar 4:55 am CDT
Extended Forecast for

Mendota IL

  • Today

    Today: Mostly sunny, with a high near 79. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 63. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 77. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Breezy.
    Mostly Cloudy
    then Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 40. Northwest wind around 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 46. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 46 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Showers

  • Thursday

    Thursday: Showers. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers after 1pm. Partly sunny, with a high near 64.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 79. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Tonight
A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 63. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 77. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 40. Northwest wind around 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Wednesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 46. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday Night
Showers. Low around 38. Chance of precipitation is 90%.
Thursday
Showers. High near 62. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 43.
Friday
A chance of showers after 1pm. Partly sunny, with a high near 64.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 45.
Saturday
Showers likely. Mostly cloudy, with a high near 62. Breezy.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 51. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
3:36 am CDT Mar 30, 2026
Forecast Valid:
5am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
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