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

15°F

-9°C

Humidity 68%
Wind Speed W 5 mph
Barometer 30.28 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 17 Jan 10:15 pm CST
Extended Forecast for

Vandalia IL

  • Tonight

    Tonight: Partly cloudy, with a low around 12. West wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of flurries before 1pm, then a slight chance of snow between 1pm and 4pm, then a chance of flurries after 4pm. Increasing clouds, with a high near 29. South wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 29 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Blustery, with a southwest wind 11 to 16 mph becoming northwest 17 to 22 mph after midnight. Winds could gust as high as 29 mph.

    Low: 10 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Blustery

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 17. Northwest wind 8 to 17 mph, with gusts as high as 26 mph.

    High: 17 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 8. Northwest wind around 6 mph becoming calm.

    Low: 8 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 12. West wind 6 to 10 mph, with gusts as high as 22 mph.
Sunday
A chance of flurries before 1pm, then a slight chance of snow between 1pm and 4pm, then a chance of flurries after 4pm. Increasing clouds, with a high near 29. South wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday Night
A chance of flurries before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Blustery, with a southwest wind 11 to 16 mph becoming northwest 17 to 22 mph after midnight. Winds could gust as high as 29 mph.
M.L.King Day
Sunny and cold, with a high near 17. Northwest wind 8 to 17 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 8. Northwest wind around 6 mph becoming calm.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 21.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 40.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
Last Update:
9:36 pm CST Jan 17, 2026
Forecast Valid:
10pm CST Jan 17, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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