National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Fair

46°F

8°C

Humidity 44%
Wind Speed SE 5 mph
Barometer 30.12 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Feb 9:35 pm CST
Extended Forecast for

Vandalia IL

  • Tonight

    Tonight: Partly cloudy, with a low around 36. South wind around 5 mph becoming calm after midnight.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 51. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 90%.

    High: 51 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 5am. Low around 42. East wind around 6 mph. Chance of precipitation is 90%.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 55. Northeast wind 5 to 8 mph.

    High: 55 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. South wind around 5 mph becoming calm after midnight.
Saturday
Rain, mainly after 1pm. High near 51. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 90%.
Saturday Night
Rain, mainly before 5am. Low around 42. East wind around 6 mph. Chance of precipitation is 90%.
Sunday
A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 55. Northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 36. Light and variable wind.
Washington's Birthday
Mostly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 68.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 45.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 61.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 38.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 56.
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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:
8:37 pm CST Feb 13, 2026
Forecast Valid:
9pm CST Feb 13, 2026-6pm CST Feb 20, 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