Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

78°F

26°C

Humidity 76%
Wind Speed SW 3 mph
Barometer 29.93 in (1012.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 Aug 7:54 pm CDT
Extended Forecast for

Weldon Spring Heights MO

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 65. Light northwest wind.

    Low: 65 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog between 7am and 9am.  Otherwise, sunny, with a high near 86. Calm wind becoming north around 6 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 65. Light northwest wind.
Thursday
Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 86. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 60. Light and variable wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind.
Friday Night
Mostly clear, with a low around 60. Calm wind.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 72.
Monday
Mostly sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 75.
Wednesday
Mostly sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring Heights MO
 38.7°N 90.68°W (Elev. 591 ft)
6:01 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 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