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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fog

39°F

4°C

Humidity 100%
Wind Speed NE 5 mph
Barometer 29.99 in
Dewpoint 39°F (4°C)
Visibility 0.25 mi
Wind Chill35°F (2°C)
Last update 5 Mar 12:22 am CST
Extended Forecast for

Mendota IL

Dense Fog Advisory March 5, 12:37am until March 5, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 12:37am until March 5, 12:00pm

    NOW until 12:00pm Thu

    Dense Fog Advisory

  • Overnight

    Low: 40 °F

    Chance
    Showers and
    Areas Dense
    Fog

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 10am. Areas of dense fog before 3pm. Otherwise, cloudy, with a high near 52. Northeast wind around 5 mph becoming northwest in the afternoon.

    High: 52 °F

    Chance
    Showers and
    Areas Dense
    Fog then
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 5am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 44. East southeast wind 5 to 10 mph.

    Low: 44 °F

    Patchy Fog
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Patchy fog before 9am. High near 72. Breezy, with an east southeast wind 10 to 20 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 72 °F

    Showers and
    Patchy Fog
    then Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 52. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 52 °F

    Breezy.
    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 9am. Partly sunny, with a high near 57. Breezy.

    High: 57 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

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

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly after 5am. Areas of dense fog. Otherwise, cloudy, with a low around 40. Northeast wind around 5 mph.
Thursday
A 30 percent chance of showers, mainly before 10am. Areas of dense fog before 3pm. Otherwise, cloudy, with a high near 52. Northeast wind around 5 mph becoming northwest in the afternoon.
Thursday Night
A 20 percent chance of showers after 5am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 44. East southeast wind 5 to 10 mph.
Friday
Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Patchy fog before 9am. High near 72. Breezy, with an east southeast wind 10 to 20 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 52. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Saturday
A 20 percent chance of showers before 9am. Partly sunny, with a high near 57. Breezy.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Showers. Partly sunny, with a high near 68.
Tuesday Night
Showers. Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Mostly cloudy, with a high near 51. 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:
12:21 am CST Mar 5, 2026
Forecast Valid:
12am CST Mar 5, 2026-6pm CDT Mar 11, 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