Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

80°F

27°C

Humidity 76%
Wind Speed W 6 mph
Barometer 29.93 in (1012.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 19 Aug 2:51 pm CDT
Extended Forecast for

Crestwood MO

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 81. Light southeast wind.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 70. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 70 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Light northeast wind.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Light southeast wind.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 70. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 68. Light northeast wind.
Friday
Sunny, with a high near 87. Light and variable wind.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 84.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Crestwood MO
 38.56°N 90.41°W (Elev. 659 ft)
1:26 pm CDT Aug 19, 2026
2pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database