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

36°F

2°C

Humidity 86%
Wind Speed W 17 G 31 mph
Barometer 29.60 in (1002.5 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 15 Mar 8:54 pm CDT
Extended Forecast for

Weldon Spring MO

Wind Advisory March 15, 09:31pm until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 09:31pm until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Tonight

    Low: 21 °F

    Breezy.
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A slight chance of snow before 10am, then scattered flurries between 10am and 11am. Cloudy, with a high near 28. Blustery, with a northwest wind 22 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    High: 28 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. Northwest wind 5 to 7 mph becoming south in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a chance of rain. Mostly cloudy, with a low around 31. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of rain before 7am. Mostly sunny, with a high near 63.

    High: 63 °F

    Chance Rain
    then Sunny

  • Wednesday Night

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

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Tonight
Rain and snow, becoming all snow after 10pm. Low around 21. Breezy, with a west wind 24 to 26 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A slight chance of snow before 10am, then scattered flurries between 10am and 11am. Cloudy, with a high near 28. Blustery, with a northwest wind 22 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 13. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 37. Northwest wind 5 to 7 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 4am, then a chance of rain. Mostly cloudy, with a low around 31. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain before 7am. Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 74.
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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:
7:30 pm CDT Mar 15, 2026
Forecast Valid:
9pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation