


Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
A Few Clouds
80°F
27°C
Humidity | 69% |
Wind Speed | S 8 mph |
Barometer | 29.91 in (1012.1 mb) |
Dewpoint | 69°F (21°C) |
Visibility | 10.00 mi |
Heat Index | 83°F (28°C) |
Last update | 12 Aug 6:54 pm CDT |
Extended Forecast for
Weldon Spring MO
Tonight
Low: 70 °F
Slight Chance
T-storms then
Mostly ClearWednesday
High: 85 °F
Mostly Sunny
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 86 °F
Sunny
Thursday Night
Low: 69 °F
Mostly Clear
Friday
High: 93 °F
Sunny
Friday Night
Low: 73 °F
Mostly Clear
Saturday
High: 95 °F
Sunny
Saturday Night
Low: 75 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Light and variable wind. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 66. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Light northeast wind.
Thursday Night
Mostly clear, with a low around 69. Light and variable wind.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 96.
Sunday Night
Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Weldon Spring MO
38.72°N 90.65°W (Elev. 584 ft)
38.72°N 90.65°W (Elev. 584 ft)
5:52 pm CDT Aug 12, 2025
7pm CDT Aug 12, 2025-6pm CDT Aug 19, 2025