Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

86°F

30°C

Humidity 25%
Wind Speed SW 13 G 20 mph
Barometer 29.88 in (1011.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Mar 1:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 63. South wind 5 to 9 mph.

    Low: 63 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. West wind 7 to 10 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 52. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Clear, with a low around 63. South wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 86. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of rain. Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
1:56 pm CDT Mar 20, 2026
2pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database