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.

Light Snow

19°F

-7°C

Humidity 65%
Wind Speed NW 12 mph
Barometer 30.53 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 23 Feb 7:55 am CST
Extended Forecast for

Vandalia IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 30. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 30 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 18. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 47. Breezy, with a south wind 10 to 15 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 47 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 11 to 16 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely before 3am, then rain likely, possibly mixed with snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before noon. Partly sunny, with a high near 45. Chance of precipitation is 40%.

    High: 45 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 30. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 18. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Mostly cloudy, with a high near 47. Breezy, with a south wind 10 to 15 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 11 to 16 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Wednesday
Mostly sunny, with a high near 49. Northwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Rain likely before 3am, then rain likely, possibly mixed with snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before noon. Partly sunny, with a high near 45. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 56.
Friday Night
Clear, with a low around 36.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 47.
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:
5:31 am CST Feb 23, 2026
Forecast Valid:
8am CST Feb 23, 2026-6pm CST Mar 1, 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