Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fair
52°F
11°C
| Humidity | 61% |
| Wind Speed | Calm |
| Barometer | 30.02 in (1016.9 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 18 Mar 8:54 pm CDT |
Extended Forecast for
Weldon Spring MO
Tonight
Low: 45 °F
Partly Cloudy
Thursday
High: 74 °F
Becoming
SunnyThursday Night
Low: 48 °F
Mostly Clear
Friday
High: 81 °F
Sunny
Friday Night
Low: 52 °F
Partly Cloudy
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 80 °F
Mostly Sunny
Sunday Night
Low: 38 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 45. Calm wind.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 74. Calm wind becoming north around 5 mph.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 81. Calm wind becoming west 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. West wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 70.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT 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)
7:46 pm CDT Mar 18, 2026
9pm CDT Mar 18, 2026-6pm CDT Mar 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
