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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Light Rain

49°F

9°C

Humidity 83%
Wind Speed NE 15 G 28 mph
Barometer 30.11 in (1018.9 mb)
Dewpoint 44°F (7°C)
Visibility 5.00 mi
Wind Chill43°F (6°C)
Last update 27 Mar 2:54 am CDT
Extended Forecast for

Weldon Spring MO

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 41. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Friday

    Friday: A 40 percent chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 54. North wind around 16 mph, with gusts as high as 28 mph.

    High: 54 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the morning.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. South wind around 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 41. North wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Friday
A 40 percent chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 54. North wind around 16 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 30. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 41. South wind around 8 mph.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 86.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 61.
Wednesday
A 50 percent chance of rain and thunderstorms. Partly sunny, with a high near 76.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Rain and thunderstorms likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
2:51 am CDT Mar 27, 2026
Forecast Valid:
3am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation