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

35°F

2°C

Humidity 69%
Wind Speed Calm
Barometer 30.65 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 28 Mar 7:55 am CDT
Extended Forecast for

Vandalia IL

Freeze Warning March 28, 08:19am until March 28, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning March 28, 08:19am until March 28, 09:00am

    NOW until 9:00am Sat

    Freeze Warning

  • Today

    High: 54 °F

    Frost then
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South wind around 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. South wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 77. South wind 11 to 18 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy. Chance of precipitation is 40%.

    High: 80 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 90%.

    Low: 46 °F

    Rain

Detailed Forecast

Today
Widespread frost before 9am. Otherwise, sunny, with a high near 54. Light and variable wind becoming east around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 37. South wind around 7 mph.
Sunday
Partly sunny, with a high near 64. South wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 77. South wind 11 to 18 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy. Chance of precipitation is 40%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 54.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 66.
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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:
8:16 am CDT Mar 28, 2026
Forecast Valid:
8am CDT Mar 28, 2026-6pm CDT Apr 3, 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