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.

Overcast and Breezy

68°F

20°C

Humidity 74%
Wind Speed S 22 G 31 mph
Barometer 29.84 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 9 Mar 2:35 pm CDT
Extended Forecast for

Vandalia IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 73. Breezy, with a south wind 18 to 20 mph.

    High: 73 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 77. South wind 7 to 17 mph, with gusts as high as 24 mph.

    High: 77 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 56. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 48 during the remainder of the day. Southwest wind 15 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 64 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 73. Breezy, with a south wind 18 to 20 mph.
Tonight
Partly cloudy, with a low around 60. South wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 77. South wind 7 to 17 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 56. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 48 during the remainder of the day. Southwest wind 15 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50.
Sunday
Rain likely. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 60%.
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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 pm CDT Mar 9, 2026
Forecast Valid:
2pm 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