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

47°F

8°C

Humidity 51%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 25 Mar 4:15 am CDT
Extended Forecast for

Vandalia IL

  • Today

    Today: Mostly sunny, with a high near 72. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of rain after 1pm. Sunny, with a high near 86. Southwest wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny then
    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then rain after 4am. Low around 41. Southwest wind 11 to 18 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Friday

    Friday: Rain, mainly before 7am. High near 50. North wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    High: 50 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 72. Light and variable wind becoming south 6 to 11 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of rain after 1pm. Sunny, with a high near 86. Southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Thursday Night
Showers and possibly a thunderstorm before 4am, then rain after 4am. Low around 41. Southwest wind 11 to 18 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%.
Friday
Rain, mainly before 7am. High near 50. North wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 76.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 58.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 76.
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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:
3:51 am CDT Mar 25, 2026
Forecast Valid:
4am CDT Mar 25, 2026-6pm CDT Mar 31, 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