Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Overcast
45°F
7°C
| Humidity | 77% |
| Wind Speed | W 9 mph |
| Barometer | 30.06 in (1017.9 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 7 Mar 6:54 pm CST |
Extended Forecast for
Weldon Spring MO
Tonight
Low: 35 °F
Mostly Cloudy
then Patchy
FogSunday
High: 67 °F
Patchy Fog
then SunnySunday Night

Low: 47 °F
Clear
Monday

High: 78 °F
Sunny
Monday Night
Low: 60 °F
Mostly Clear
then Slight
Chance
T-stormsTuesday
High: 81 °F
Slight Chance
T-storms then
Showers
LikelyTuesday Night

Low: 48 °F
Showers
Wednesday
High: 65 °F
Showers then
Showers
LikelyWednesday Night
Low: 32 °F
Slight Chance
Showers then
Mostly Clear
Detailed Forecast
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 5 to 8 mph becoming light and variable after midnight.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 67. Light southwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Clear, with a low around 47. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 78. South wind 8 to 13 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly clear, with a low around 60. South wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before noon, then showers likely. High near 65. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly cloudy, with a high near 56.
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)
5:01 pm CST Mar 7, 2026
7pm CST Mar 7, 2026-6pm CDT Mar 14, 2026


