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

49°F

9°C

Humidity 51%
Wind Speed NE 10 G 18 mph
Barometer 30.42 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 7 Apr 12:35 pm CDT
Extended Forecast for

Vandalia IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 51. East wind 9 to 11 mph.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. East wind around 7 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. South wind 7 to 16 mph, with gusts as high as 23 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. South wind 10 to 13 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 51. East wind 9 to 11 mph.
Tonight
Partly cloudy, with a low around 38. East wind around 7 mph.
Wednesday
Mostly sunny, with a high near 70. South wind 7 to 16 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 73. South wind 10 to 13 mph.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 70. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
Last Update:
11:51 am CDT Apr 7, 2026
Forecast Valid:
12pm CDT Apr 7, 2026-6pm CDT Apr 13, 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