Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

SULLIVAN (KUUV)

Lat: 38.23°NLon: 91.16°WElev: 933ft.

Fair

N/A

Humidity NA
Wind Speed S 8 mph
Barometer 30.10 in
Dewpoint N/A
Visibility 10.00 mi
Last update 5 Aug 9:55 am CDT
Extended Forecast for

Saint Clair MO

Flood Watch August 5, 10:00pm until August 6, 10:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Isolated showers and thunderstorms after 4pm.  Mostly sunny, with a high near 90. South wind 3 to 5 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall.  Low around 69. Calm wind.  Chance of precipitation is 80%.

    Low: 69 °F

    Scattered
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm. Some of the storms could produce heavy rainfall.  High near 84. Light and variable wind.  Chance of precipitation is 80%.

    High: 84 °F

    Heavy Rain
    then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 85. Light southwest wind.  Chance of precipitation is 60%.

    High: 85 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 3 to 5 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Low around 69. Calm wind. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms, mainly before 1pm. Some of the storms could produce heavy rainfall. High near 84. Light and variable wind. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%.
Friday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Light southwest wind. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 68.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MO
 38.35°N 90.98°W (Elev. 715 ft)
9:06 am CDT Aug 5, 2026
11am CDT Aug 5, 2026-6pm CDT Aug 11, 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