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

72°F

22°C

Humidity 94%
Wind Speed N 7 mph
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Last update 5 Jul 2:24 am CDT
Extended Forecast for

Mendota IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 66. North wind around 5 mph.

    Low: 66 °F

    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 79. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 79 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. North northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 66. North wind around 5 mph.
Sunday
A slight chance of showers between noon and 1pm, then a slight chance of showers and thunderstorms after 1pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 79. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 62. North northeast wind around 5 mph, with gusts as high as 10 mph.
Monday
Sunny, with a high near 81. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 60. Northeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 64.
Friday
A chance of showers. Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.13°W
Last Update:
1:11 am CDT Jul 5, 2026
Forecast Valid:
3am CDT Jul 5, 2026-6pm CDT Jul 11, 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