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

34°F

1°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.95 in
Dewpoint 34°F (1°C)
Visibility 0.15 mi
Wind Chill27°F (-3°C)
Last update 16 Feb 5:21 am CST
Extended Forecast for

Spring Valley IL

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

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 36 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 65. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 42. South wind 5 to 10 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °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

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 36. Southwest wind around 5 mph.
Washington's Birthday
Mostly sunny, with a high near 65. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Increasing clouds, with a low around 42. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 60. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A 40 percent chance of rain after noon. Partly sunny, with a high near 62.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 45.
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. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spring Valley IL
 41.32°N 89.23°W (Elev. 466 ft)
Last Update:
3:17 am CST Feb 16, 2026
Forecast Valid:
5am CST Feb 16, 2026-6pm CST Feb 22, 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