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.

Overcast

64°F

18°C

Humidity 68%
Wind Speed S 14 G 22 mph
Barometer 30.07 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 30 Mar 6:55 am CDT
Extended Forecast for

Vandalia IL

  • Today

    Today: Partly sunny, with a high near 78. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.

    High: 78 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 62. South wind 13 to 16 mph, with gusts as high as 29 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 80 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Southwest wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain, with thunderstorms also possible after 10am. High near 71. Northeast wind 9 to 11 mph becoming southeast in the afternoon. Chance of precipitation is 80%.

    High: 71 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Rain Likely

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 74. Breezy. Chance of precipitation is 80%.

    High: 74 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 59. Chance of precipitation is 80%.

    Low: 59 °F

    Rain

  • Friday

    Friday: A chance of rain and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 78. Breezy, with a south wind 13 to 22 mph, with gusts as high as 34 mph.
Tonight
Partly cloudy, with a low around 62. South wind 13 to 16 mph, with gusts as high as 29 mph.
Tuesday
A 20 percent chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Southwest wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Wednesday
Rain, with thunderstorms also possible after 10am. High near 71. Northeast wind 9 to 11 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Thursday
Rain and possibly a thunderstorm. High near 74. Breezy. Chance of precipitation is 80%.
Thursday Night
Rain and possibly a thunderstorm. Low around 59. Chance of precipitation is 80%.
Friday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Friday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 40.
Sunday
A 20 percent chance of rain. 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:
6:46 am CDT Mar 30, 2026
Forecast Valid:
7am CDT Mar 30, 2026-6pm CDT Apr 5, 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