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

56°F

13°C

Humidity 84%
Wind Speed SW 10 mph
Barometer 29.90 in
Dewpoint 51°F (11°C)
Visibility 7.00 mi
Last update 10 Feb 9:15 am CST
Extended Forecast for

Vandalia IL

  • Today

    Today: Mostly sunny, with a high near 60. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. North wind 7 to 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 46. Northwest wind 3 to 7 mph.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 28. Calm wind.

    Low: 28 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 44. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 44 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow before noon, then a chance of rain. Cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 60. Southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Partly cloudy, with a low around 28. North wind 7 to 9 mph.
Wednesday
Sunny, with a high near 46. Northwest wind 3 to 7 mph.
Wednesday Night
Increasing clouds, with a low around 28. Calm wind.
Thursday
Cloudy, with a high near 44. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 47.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
A slight chance of rain and snow before noon, then a chance of rain. Cloudy, with a high near 47. Chance of precipitation is 30%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Sunday
A 50 percent chance of rain. Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 32.
Washington's Birthday
Mostly sunny, with a high near 55.
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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:
8:31 am CST Feb 10, 2026
Forecast Valid:
9am CST Feb 10, 2026-6pm CST Feb 16, 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