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.

Partly Cloudy

77°F

25°C

Humidity 60%
Wind Speed S 12 mph
Barometer 29.90 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 15 Apr 1:35 pm CDT
Extended Forecast for

Vandalia IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Cloudy, with a high near 81. Southwest wind around 15 mph, with gusts as high as 22 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Low around 62. South wind around 10 mph. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 22 mph.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

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

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Cloudy, with a high near 81. Southwest wind around 15 mph, with gusts as high as 22 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 62. South wind around 10 mph. Chance of precipitation is 90%.
Thursday
A chance of showers before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind 8 to 10 mph. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 57. Light and variable wind.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 22 mph.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 74.
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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:
1:26 pm CDT Apr 15, 2026
Forecast Valid:
1pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation