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.

Mostly Cloudy

73°F

23°C

Humidity 71%
Wind Speed SW 12 G 21 mph
Barometer 29.67 in (1003.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 11 Mar 1:54 am CDT
Extended Forecast for

Weldon Spring MO

  • Overnight

    Overnight: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3am. Steady temperature around 67. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 67 °F

    T-storms

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 2pm, then a slight chance of rain between 2pm and 3pm. Temperature falling to around 46 by 4pm. Southwest wind 10 to 18 mph becoming northwest in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 80%.

    High: 62 °F⇓

    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 30 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 56. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 32 mph.

    Low: 44 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3am. Steady temperature around 67. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm before 2pm, then a slight chance of rain between 2pm and 3pm. Temperature falling to around 46 by 4pm. Southwest wind 10 to 18 mph becoming northwest in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 56. Light west wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 32 mph.
Friday
Partly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 65.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 51.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 24. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
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 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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