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

Hazardous Weather Conditions

Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Fair

33°F

1°C

Humidity 88%
Wind Speed Calm
Barometer 30.31 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 12 Mar 7:35 am CDT
Extended Forecast for

Vandalia IL

  • Today

    Today: Sunny, with a high near 52. Light west wind increasing to 5 to 10 mph in the morning.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 39 mph.

    Low: 42 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 58. Breezy, with a southwest wind 17 to 21 mph becoming west in the afternoon. Winds could gust as high as 34 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58. Southeast wind 6 to 10 mph.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 65. Breezy. Chance of precipitation is 80%.

    High: 65 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow, mainly before 1am. Some thunder is also possible. Cloudy, with a low around 23. Breezy. Chance of precipitation is 70%.

    Low: 23 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 30. Blustery.

    High: 30 °F

    Slight Chance
    Snow and
    Blustery

Detailed Forecast

Today
Sunny, with a high near 52. Light west wind increasing to 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 42. Breezy, with a south wind 9 to 14 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 39 mph.
Friday
Partly sunny, with a high near 58. Breezy, with a southwest wind 17 to 21 mph becoming west in the afternoon. Winds could gust as high as 34 mph.
Friday Night
Mostly cloudy, with a low around 34. Northwest wind 5 to 7 mph becoming light and variable.
Saturday
Partly sunny, with a high near 58. Southeast wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 65. Breezy. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow, mainly before 1am. Some thunder is also possible. Cloudy, with a low around 23. Breezy. Chance of precipitation is 70%.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 30. Blustery.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 26.
Wednesday
Mostly cloudy, with a high near 52.
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:
5:56 am CDT Mar 12, 2026
Forecast Valid:
7am CDT Mar 12, 2026-6pm CDT Mar 18, 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