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

35°F

2°C

Humidity 65%
Wind Speed W 18 G 22 mph
Barometer 29.70 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 20 Feb 5:35 am CST
Extended Forecast for

Vandalia IL

  • Today

    Today: Sunny, with a high near 41. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 41 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 26. Light northwest wind increasing to 5 to 9 mph after midnight.

    Low: 26 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 41. Northwest wind 8 to 11 mph.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 29 mph.

    High: 33 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 41. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 38 mph.
Tonight
Increasing clouds, with a low around 26. Light northwest wind increasing to 5 to 9 mph after midnight.
Saturday
Partly sunny, with a high near 41. Northwest wind 8 to 11 mph.
Saturday Night
Mostly clear, with a low around 21. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 33. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 55.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 50. Chance of precipitation is 20%.
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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:
4:51 am CST Feb 20, 2026
Forecast Valid:
5am CST Feb 20, 2026-6pm CST Feb 26, 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