National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

40°F

4°C

Humidity 45%
Wind Speed N 5 mph
Barometer 30.63 in (1037.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 28 Mar 1:54 am CDT
Extended Forecast for

Weldon Spring MO

Freeze Warning until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until March 28, 09:00am

    NOW until 9:00am Sat

    Freeze Warning

  • Overnight

    Low: 29 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Calm wind becoming south 5 to 8 mph in the morning.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. South wind around 8 mph.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 70. South wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Chance Rain
    then Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 29. North wind around 6 mph.
Saturday
Sunny, with a high near 57. Calm wind becoming south 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 41. South wind around 8 mph.
Sunday
Partly sunny, with a high near 70. South wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 90%.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 56.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
1:26 am CDT Mar 28, 2026
Forecast Valid:
2am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation