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

55°F

13°C

Humidity 83%
Wind Speed S 16 mph
Barometer 29.45 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 18 Feb 3:55 am CST
Extended Forecast for

Mendota IL

Red Flag Warning February 18, 10:00am until February 18, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: A 20 percent chance of showers before 5am. Mostly cloudy, with a steady temperature around 53. South southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 53 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 65. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 39. Southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 62. Southeast wind 5 to 15 mph. Chance of precipitation is 60%.

    High: 62 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely before 3am, then a chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy, with a south southeast wind 10 to 15 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 32 °F

    Rain Likely
    then Chance
    Rain/Snow and
    Breezy

  • Friday

    Friday: A slight chance of rain and snow before 9am, then a slight chance of snow between 9am and noon. Partly sunny, with a high near 39. Breezy. Chance of precipitation is 20%.

    High: 39 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow before midnight. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 5am. Mostly cloudy, with a steady temperature around 53. South southwest wind around 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 65. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph.
Wednesday Night
Increasing clouds, with a low around 39. Southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.
Thursday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 62. Southeast wind 5 to 15 mph. Chance of precipitation is 60%.
Thursday Night
Rain likely before 3am, then a chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy, with a south southeast wind 10 to 15 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
A slight chance of rain and snow before 9am, then a slight chance of snow between 9am and noon. Partly sunny, with a high near 39. Breezy. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 22.
Saturday
Partly sunny, with a high near 36.
Saturday Night
A chance of snow before midnight. Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
4:11 am CST Feb 18, 2026
Forecast Valid:
4am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation