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

65°F

18°C

Humidity 50%
Wind Speed S 10 mph
Barometer 30.16 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Apr 1:35 am CDT
Extended Forecast for

Vandalia IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 47. Northeast wind around 6 mph.

    Low: 47 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 68. Southeast wind around 7 mph. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. South wind 6 to 9 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. South wind around 10 mph, with gusts as high as 21 mph.
Friday
Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 69. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 47. Northeast wind around 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 68. Southeast wind around 7 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 58. South wind 6 to 9 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Breezy.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 83.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
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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 am CDT Apr 10, 2026
Forecast Valid:
1am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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