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.

Rain

51°F

11°C

Humidity 94%
Wind Speed E 8 mph
Barometer 30.10 in
Dewpoint 49°F (9°C)
Visibility 4.00 mi
Wind Chill48°F (9°C)
Last update 4 Mar 3:55 am CST
Extended Forecast for

Vandalia IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 46. East wind around 6 mph. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Patchy fog between 7am and noon. High near 60. East wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 90%.

    High: 60 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 53. Light and variable wind becoming south 5 to 8 mph in the evening. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before noon. High near 64. West wind 5 to 11 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. Calm wind becoming south 5 to 8 mph after midnight. Chance of precipitation is 60%.

    Low: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 76. Breezy.

    High: 76 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 46. East wind around 6 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Patchy fog between 7am and noon. High near 60. East wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 53. Light and variable wind becoming south 5 to 8 mph in the evening. Chance of precipitation is 90%.
Thursday
Showers, mainly before noon. High near 64. West wind 5 to 11 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. Calm wind becoming south 5 to 8 mph after midnight. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 76. Breezy.
Friday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 55. Chance of precipitation is 80%.
Saturday
Showers likely before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 73.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
Last Update:
12:51 am CST Mar 4, 2026
Forecast Valid:
4am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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