NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
Salem, Salem-Leckrone Airport (KSLO)
Lat: 38.64°NLon: 88.96°WElev: 574ft.
Overcast
61°F
16°C
| Humidity | 78% |
| Wind Speed | NA |
| Barometer | 29.98 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 22 May 5:55 am CDT |
Extended Forecast for
Vandalia IL
Today
High: 67 °F
Chance
ShowersTonight
Low: 57 °F
Chance
ShowersSaturday
High: 78 °F
Partly Sunny
Saturday Night
Low: 60 °F
Mostly Cloudy
then Chance
ShowersSunday
High: 79 °F
Showers
LikelySunday Night
Low: 60 °F
Mostly Cloudy
Memorial Day
High: 81 °F
Partly Sunny
Monday Night
Low: 62 °F
Mostly Cloudy
Tuesday
High: 81 °F
Chance
Showers then
Chance
T-storms
Detailed Forecast
Today
A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 67. Northeast wind 5 to 8 mph.
Tonight
A 40 percent chance of showers, mainly between 1am and 2am. Mostly cloudy, with a low around 57. Northeast wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 78. Light northwest wind.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 60. Calm wind.
Sunday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 79. Light and variable wind. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 60.
Memorial Day
Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 82. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Vandalia IL
38.98°N 89.1°W (Elev. 499 ft)
38.98°N 89.1°W (Elev. 499 ft)
5:36 am CDT May 22, 2026
6am CDT May 22, 2026-6pm CDT May 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
