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

44°F

7°C

Humidity 65%
Wind Speed W 5 mph
Barometer 30.19 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 5 Apr 12:55 am CDT
Extended Forecast for

Vandalia IL

Flood Warning April 5, 02:05pm until April 8, 11:00am
Click here for hazard details and duration
Flood Warning

  • Overnight

    Overnight: Mostly clear, with a low around 36. West wind around 8 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 56. Northwest wind 8 to 11 mph.

    High: 56 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. West wind 3 to 6 mph.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 58. Northwest wind 6 to 10 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 36. West wind around 8 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 56. Northwest wind 8 to 11 mph.
Sunday Night
Clear, with a low around 38. West wind 3 to 6 mph.
Monday
Sunny, with a high near 58. Northwest wind 6 to 10 mph.
Monday Night
Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 70.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.98°N 89.1°W (Elev. 499 ft)
Last Update:
9:31 pm CDT Apr 4, 2026
Forecast Valid:
1am CDT Apr 5, 2026-6pm CDT Apr 11, 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