NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

79°F

26°C

Humidity 60%
Wind Speed S 9 mph
Barometer 29.83 in (1009.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 May 10:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Overnight

    Overnight: Partly cloudy, with a low around 71. South wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 2pm.  Mostly cloudy, with a high near 87. South wind 13 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.  Chance of precipitation is 60%.

    High: 87 °F

    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly after 4am.  Partly cloudy, with a low around 69. South wind around 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    Low: 69 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms.  High near 84. Southwest wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 90%.

    High: 84 °F

    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Cloudy, with a low around 55. Northwest wind 7 to 9 mph.

    Low: 55 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. South wind 11 to 13 mph, with gusts as high as 22 mph.
Monday
Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 87. South wind 13 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly after 4am. Partly cloudy, with a low around 69. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms. High near 84. Southwest wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 55. Northwest wind 7 to 9 mph.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.74°N 90.65°W (Elev. 499 ft)
10:01 pm CDT May 17, 2026
12am CDT May 18, 2026-6pm CDT May 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database