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.

Overcast and Breezy

29°F

-2°C

Humidity 69%
Wind Speed W 23 G 40 mph
Barometer 29.77 in (1008.4 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 16 Mar 2:54 am CDT
Extended Forecast for

Weldon Spring MO

Wind Advisory March 16, 03:56am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 03:56am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Overnight

    Low: 20 °F

    Cloudy and
    Blustery

  • Monday

    Monday: A chance of snow before 10am, then a chance of flurries between 10am and 11am. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.

    High: 28 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 38. Northwest wind 5 to 8 mph becoming south in the afternoon.

    High: 38 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 33. Southeast wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 33 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 20. Blustery, with a northwest wind around 26 mph, with gusts as high as 40 mph.
Monday
A chance of snow before 10am, then a chance of flurries between 10am and 11am. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 14. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 38. Northwest wind 5 to 8 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 33. Southeast wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.74°N 90.65°W (Elev. 499 ft)
Last Update:
2:06 am CDT Mar 16, 2026
Forecast Valid:
3am CDT Mar 16, 2026-6pm CDT Mar 22, 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