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.

Fog/Mist

N/A

Humidity NA
Wind Speed NE 8 mph
Barometer 30.21 in
Dewpoint N/A
Visibility 2.00 mi
Last update 4 Mar 2:15 am CST
Extended Forecast for

Mendota IL

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 34. East northeast wind 5 to 10 mph.

    Low: 34 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 48. East wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 48 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, with thunderstorms also possible after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 42. East northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 53. Northeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%.

    High: 53 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 45. East southeast wind 5 to 10 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers after 3pm. Patchy fog before 9am. High near 72. Chance of precipitation is 90%.

    High: 72 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Chance of precipitation is 100%.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: A chance of showers before noon. Partly sunny, with a high near 56.

    High: 56 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 34. East northeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers after 2pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 48. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Showers likely, with thunderstorms also possible after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 42. East northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before noon. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 53. Northeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers after 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 45. East southeast wind 5 to 10 mph.
Friday
Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers after 3pm. Patchy fog before 9am. High near 72. Chance of precipitation is 90%.
Friday Night
A slight chance of showers, then showers and possibly a thunderstorm after 9pm. Low around 47. Chance of precipitation is 100%.
Saturday
A chance of showers before noon. Partly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 70.
Monday Night
A chance of showers. Mostly clear, with a low around 54.
Tuesday
Showers likely. Mostly cloudy, with a high near 70. 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:
1:56 am CST Mar 4, 2026
Forecast Valid:
2am CST Mar 4, 2026-6pm CDT Mar 10, 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