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 45%
Wind Speed W 15 mph
Barometer 29.89 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 13 May 1:00 am CDT
Extended Forecast for

Mendota IL

  • Overnight

    Overnight: Clear, with a low around 50. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 64. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 64 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind becoming east southeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Isolated showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 51. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Isolated
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Isolated showers and thunderstorms before 1pm. Mostly sunny, with a high near 80. Breezy. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Mostly clear, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Scattered
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Scattered
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 50. Northwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Increasing clouds, with a high near 64. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 42. North wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 70. Calm wind becoming east southeast around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
Isolated showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 51. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Friday
Isolated showers and thunderstorms before 1pm. Mostly sunny, with a high near 80. Breezy. Chance of precipitation is 20%.
Friday Night
Scattered showers and thunderstorms. Mostly clear, with a low around 56. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 85.
Saturday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 58.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59.
Tuesday
Scattered showers and thunderstorms. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.13°W
Last Update:
11:02 pm CDT May 12, 2026
Forecast Valid:
1am CDT May 13, 2026-6pm CDT May 19, 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