Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

29°F

-2°C

Humidity 41%
Wind Speed NW 18 G 25 mph
Barometer 30.29 in (1026.7 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 27 Jan 12:54 pm CST
Extended Forecast for

Weldon Spring MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 31. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 31 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 31. Light southwest wind becoming west 5 to 9 mph in the morning.

    High: 31 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 8. Light and variable wind.

    Low: 8 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy and cold, with a high near 20. Calm wind becoming north around 5 mph.

    High: 20 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 15.

    High: 15 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

Detailed Forecast

This Afternoon
Sunny, with a high near 31. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Increasing clouds, with a high near 31. Light southwest wind becoming west 5 to 9 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 8. Light and variable wind.
Thursday
Mostly cloudy and cold, with a high near 20. Calm wind becoming north around 5 mph.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Mostly sunny and cold, with a high near 15.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Sunny and cold, with a high near 19.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
10:47 am CST Jan 27, 2026
1pm CST Jan 27, 2026-6pm CST Feb 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database