Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

80°F

27°C

Humidity 69%
Wind Speed Vrbl 3 mph
Barometer 30.05 in (1017.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Aug 9:53 am CDT
Extended Forecast for

Kimmswick MO

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. Southeast wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 60%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm.  Partly sunny, with a high near 88. Light south wind.  Chance of precipitation is 70%.

    High: 88 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 67. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 88. Light south wind. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Kimmswick MO
 38.36°N 90.36°W (Elev. 377 ft)
9:01 am CDT Aug 4, 2026
10am CDT Aug 4, 2026-6pm CDT Aug 10, 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