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.

Fair

54°F

12°C

Humidity 84%
Wind Speed SW 17 G 23 mph
Barometer 29.48 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 18 Feb 6:35 am CST
Extended Forecast for

Grand Ridge IL

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

  • Today

    Today: Sunny, with a high near 66. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Southwest wind 5 to 15 mph becoming southeast after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 34. Breezy, with a south southeast wind 10 to 15 mph becoming west 20 to 25 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 41. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 41 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow before midnight. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.
Tonight
Mostly cloudy, with a low around 42. Southwest wind 5 to 15 mph becoming southeast 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 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 34. Breezy, with a south southeast wind 10 to 15 mph becoming west 20 to 25 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 41. Breezy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.
Friday Night
Mostly clear, with a low around 23.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 37.
Saturday Night
A chance of snow before midnight. Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Ridge IL
 41.24°N 88.83°W
Last Update:
4:11 am CST Feb 18, 2026
Forecast Valid:
6am CST Feb 18, 2026-6pm CST Feb 24, 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