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.

Overcast

51°F

11°C

Humidity 59%
Wind Speed N 6 mph
Barometer 30.29 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 7 Apr 12:35 am CDT
Extended Forecast for

Vandalia IL

  • Overnight

    Overnight: A 30 percent chance of rain, mainly after 5am. Cloudy, with a low around 37. Northwest wind 6 to 10 mph becoming north. Winds could gust as high as 22 mph.

    Low: 37 °F

    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 50. East wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 50 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. East wind around 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. South wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. South wind around 10 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly after 5am. Cloudy, with a low around 37. Northwest wind 6 to 10 mph becoming north. Winds could gust as high as 22 mph.
Tuesday
A 40 percent chance of rain, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 50. East wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 37. East wind around 7 mph.
Wednesday
Partly sunny, with a high near 69. South wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 51. South wind around 10 mph.
Thursday
Sunny, with a high near 72.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 55.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 76.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 60.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
Last Update:
12:31 am CDT Apr 7, 2026
Forecast Valid:
12am CDT Apr 7, 2026-6pm CDT Apr 13, 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