Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Overcast

60°F

16°C

Humidity 91%
Wind Speed SE 3 mph
Barometer 29.61 in
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 19 Feb 7:15 am CST
Extended Forecast for

Vandalia IL

Dense Fog Advisory until February 19, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 19, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Today

    High: 64 °F

    T-storms
    Likely and
    Patchy Dense
    Fog

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 36. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph.

    Low: 36 °F

    Slight Chance
    T-storms then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. West wind around 5 mph becoming light and variable.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm.  Mostly sunny, with a high near 44. Northwest wind 5 to 9 mph.  Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Breezy.

    High: 36 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Today
Showers and thunderstorms likely, mainly between noon and 3pm. Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 64. South wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 36. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 47. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 28. West wind around 5 mph becoming light and variable.
Saturday
A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 44. Northwest wind 5 to 9 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Mostly sunny, with a high near 36. Breezy.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Vandalia IL
 38.96°N 89.11°W (Elev. 531 ft)
6:26 am CST Feb 19, 2026
7am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
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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