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

41°F

5°C

Humidity 100%
Wind Speed S 8 mph
Barometer 29.97 in
Dewpoint 41°F (5°C)
Visibility 2.50 mi
Wind Chill36°F (2°C)
Last update 16 Feb 7:41 am CST
Extended Forecast for

Leonore IL

Dense Fog Advisory until February 16, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 16, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Washington's Birthday

    High: 65 °F

    Areas Dense
    Fog then
    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 42. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 60 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after 3am. Cloudy, then gradually becoming partly cloudy, with a low around 52. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 66. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Washington's Birthday
Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 65. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 42. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 60. Breezy, with a south southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Showers likely, with thunderstorms also possible after 3am. Cloudy, then gradually becoming partly cloudy, with a low around 52. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 66. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
A 40 percent chance of rain after noon. Partly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Leonore IL
 41.21°N 88.98°W
Last Update:
5:43 am CST Feb 16, 2026
Forecast Valid:
7am CST Feb 16, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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