National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Fair

24°F

-4°C

Humidity 62%
Wind Speed E 3 mph
Barometer 30.14 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 9 Feb 5:35 am CST
Extended Forecast for

Vandalia IL

  • Today

    Today: Sunny, with a high near 49. Light and variable wind.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. South wind 3 to 7 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. Southwest wind 6 to 8 mph becoming northwest in the morning.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. North wind around 6 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. North wind 3 to 6 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain and snow. Cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 49. Light and variable wind.
Tonight
Mostly clear, with a low around 38. South wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 56. Southwest wind 6 to 8 mph becoming northwest in the morning.
Tuesday Night
Partly cloudy, with a low around 28. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 46. North wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
A 20 percent chance of rain after noon. Cloudy, with a high near 42.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
A slight chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 29.
Saturday
A 40 percent chance of rain. Cloudy, with a high near 44.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A 30 percent chance of rain. Mostly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
Last Update:
5:11 am CST Feb 9, 2026
Forecast Valid:
5am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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