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

46°F

8°C

Humidity 99%
Wind Speed SE 9 mph
Barometer 29.66 in
Dewpoint 46°F (8°C)
Visibility 0.50 mi
Wind Chill41°F (5°C)
Last update 26 Dec 4:35 am CST
Extended Forecast for

Mendota IL

  • Overnight

    Overnight: Intermittent rain. Areas of dense fog. Otherwise, cloudy, with a steady temperature around 45. East southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 45 °F

    Intermittent
    Rain and
    Areas Dense
    Fog

  • Friday

    Friday: A 30 percent chance of rain before 7am. Areas of dense fog before 9am. Otherwise, cloudy, with a high near 49. South southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 49 °F

    Chance Rain
    and Areas
    Dense Fog
    then Cloudy

  • Friday Night

    Friday Night: Patchy fog after midnight. Otherwise, cloudy, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Cloudy then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, cloudy, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 46 °F

    Patchy Fog
    then Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after midnight. Cloudy, with a low around 45. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after noon. Cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of rain showers before 9pm, then a chance of rain and snow showers between 9pm and midnight, then a slight chance of snow showers after midnight. Mostly cloudy, with a low around 16. Blustery. Chance of precipitation is 50%.

    Low: 16 °F

    Blustery.
    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Monday

    Monday: Partly sunny, with a high near 23. Blustery.

    High: 23 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Overnight
Intermittent rain. Areas of dense fog. Otherwise, cloudy, with a steady temperature around 45. East southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Friday
A 30 percent chance of rain before 7am. Areas of dense fog before 9am. Otherwise, cloudy, with a high near 49. South southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Patchy fog after midnight. Otherwise, cloudy, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 9am. Otherwise, cloudy, with a high near 46. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers, mainly after midnight. Cloudy, with a low around 45. Southeast wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Showers likely, mainly after noon. Cloudy, with a high near 56. Chance of precipitation is 70%.
Sunday Night
A chance of rain showers before 9pm, then a chance of rain and snow showers between 9pm and midnight, then a slight chance of snow showers after midnight. Mostly cloudy, with a low around 16. Blustery. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 23. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 27.
Wednesday Night
Mostly cloudy, with a low around 11.
New Year's Day
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
3:15 am CST Dec 26, 2025
Forecast Valid:
4am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation