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

51°F

11°C

Humidity 80%
Wind Speed S 8 mph
Barometer 29.90 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 9 Mar 3:55 am CDT
Extended Forecast for

Vandalia IL

  • Today

    Today: Sunny, with a high near 75. South wind 8 to 16 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. South wind 9 to 13 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 78. South wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 57. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 57 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 47 during the remainder of the day. Breezy, with a southwest wind 15 to 20 mph becoming northwest in the afternoon. Chance of precipitation is 100%.

    High: 64 °F⇓

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 75. South wind 8 to 16 mph.
Tonight
Partly cloudy, with a low around 59. South wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday
A 30 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 78. South wind 8 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Rain and possibly a thunderstorm. Low around 57. Southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 47 during the remainder of the day. Breezy, with a southwest wind 15 to 20 mph becoming northwest in the afternoon. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Sunny, with a high near 51.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 61.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 46.
Sunday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 65. 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:
1:26 am CDT Mar 9, 2026
Forecast Valid:
4am CDT Mar 9, 2026-6pm CDT Mar 15, 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