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.

Fair

35°F

2°C

Humidity 47%
Wind Speed S 15 G 24 mph
Barometer 29.93 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 24 Feb 11:15 am CST
Extended Forecast for

Vandalia IL

  • Today

    Today: Mostly cloudy, with a high near 46. Breezy, with a south wind 18 to 23 mph, with gusts as high as 37 mph.

    High: 46 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. South wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. Calm wind becoming northwest around 5 mph.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32. Calm wind becoming northeast around 6 mph in the evening.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Partly sunny, with a high near 49. East wind 3 to 6 mph.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 46. Breezy, with a south wind 18 to 23 mph, with gusts as high as 37 mph.
Tonight
Mostly cloudy, with a low around 31. South wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Wednesday
Partly sunny, with a high near 49. Calm wind becoming northwest around 5 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32. Calm wind becoming northeast around 6 mph in the evening.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 49. East wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 37.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 46.
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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:
10:46 am CST Feb 24, 2026
Forecast Valid:
11am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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