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

58°F

14°C

Humidity 70%
Wind Speed N 17 G 28 mph
Barometer 29.92 in (1012.7 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 Mar 10:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: Rain and thunderstorms. Low around 40. North wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.

    Low: 40 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind around 16 mph, with gusts as high as 28 mph.

    High: 54 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 31 °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 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain and thunderstorms. Low around 40. North wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.
Friday
A 30 percent chance of rain, mainly between 7am and 8am. Cloudy through mid morning, then gradual clearing, 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 31. 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 57.
Monday
Mostly sunny, with a high near 86.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 64.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 59.
Wednesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. 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:
10:41 pm CDT Mar 26, 2026
Forecast Valid:
11pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation