Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

24°F

-4°C

Humidity 96%
Wind Speed SW 3 mph
Barometer 29.97 in (1015.9 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 31 Dec 9:54 pm CST
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Light and variable wind becoming north around 6 mph after midnight.

    Low: 27 °F

    Increasing
    Clouds

  • New Year's Day

    New Year's Day: Cloudy, then gradually becoming mostly sunny, with a high near 38. North wind around 6 mph becoming calm  in the morning.

    High: 38 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. Light east wind.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 41. Calm wind becoming east around 6 mph in the morning.

    High: 41 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. Northeast wind 3 to 5 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Light and variable wind becoming north around 6 mph after midnight.
New Year's Day
Cloudy, then gradually becoming mostly sunny, with a high near 38. North wind around 6 mph becoming calm in the morning.
Thursday Night
Mostly cloudy, with a low around 27. Light east wind.
Friday
Mostly cloudy, with a high near 41. Calm wind becoming east around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 28. Northeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
9:46 pm CST Dec 31, 2025
10pm CST Dec 31, 2025-6pm CST Jan 7, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database