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

76°F

24°C

Humidity 57%
Wind Speed SW 13 mph
Barometer 29.79 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Mar 2:10 pm CDT
Extended Forecast for

Mendota IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 70. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a chance of showers. Mostly cloudy, with a low around 38. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 48. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 43. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 43 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 73. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.

    High: 73 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 46. Breezy.

    Low: 46 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    T-storms

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 59. Breezy.

    High: 59 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 70. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 3am, then a chance of showers. Mostly cloudy, with a low around 38. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 1pm, then a chance of showers after 2pm. Mostly cloudy, with a high near 48. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 43. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Thursday
Showers and possibly a thunderstorm. High near 73. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%.
Thursday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 46. Breezy.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 48.
Saturday
A chance of showers. Mostly cloudy, with a high near 59. Breezy.
Saturday Night
Mostly cloudy, with a low around 32. Breezy.
Sunday
Partly sunny, with a high near 50. Breezy.
Sunday Night
Mostly clear, with a low around 30.
Monday
Sunny, with a high near 57.
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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:
1:31 pm CDT Mar 31, 2026
Forecast Valid:
2pm CDT Mar 31, 2026-6pm CDT Apr 6, 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