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.

Overcast

28°F

-2°C

Humidity 49%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 18 Jan 6:35 pm CST
Extended Forecast for

Vandalia IL

Cold Weather Advisory January 19, 03:00am until January 19, 10:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: A chance of flurries between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Blustery, with a southwest wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 37 mph.

    Low: 8 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Blustery

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 9 to 18 mph, with gusts as high as 31 mph.

    High: 18 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 9. Southwest wind 3 to 6 mph.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. South wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Blustery, with a southwest wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 37 mph.
M.L.King Day
Sunny and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 9 to 18 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 9. Southwest wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 32. Light southwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 25. South wind 6 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly cloudy, with a high near 35.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 24.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 5.
Sunday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 18.
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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:
5:51 pm CST Jan 18, 2026
Forecast Valid:
6pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation