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

81°F

27°C

Humidity 49%
Wind Speed SW 15 G 28 mph
Barometer 29.80 in (1008.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 Mar 10:54 am CDT
Extended Forecast for

Weldon Spring MO

  • Today

    Today: Sunny, with a high near 92. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Rain and thunderstorms. Low around 40. Southwest wind 9 to 18 mph becoming northeast after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    Low: 40 °F

    Chance
    T-storms then
    Rain

  • Friday

    Friday: Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

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

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain and thunderstorms before 1pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 92. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.
Tonight
Rain and thunderstorms. Low around 40. Southwest wind 9 to 18 mph becoming northeast after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Friday
Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 31. North wind 5 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 56. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 57.
Monday
A 20 percent chance of rain and thunderstorms before 1pm. Mostly sunny, with a high near 82.
Monday Night
A 30 percent chance of rain and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63.
Tuesday
A 30 percent chance of rain and thunderstorms. Partly sunny, with a high near 84.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A 50 percent chance of rain and thunderstorms. Partly sunny, with a high near 81.
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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:
10:31 am CDT Mar 26, 2026
Forecast Valid:
11am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation