National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog

58°F

14°C

Humidity 97%
Wind Speed Calm
Barometer 30.07 in (1017.8 mb)
Dewpoint 57°F (14°C)
Visibility 0.25 mi
Last update 24 Aug 6:54 am CDT
Extended Forecast for

3 Miles ESE Catawissa MO

  • Today

    Today: Increasing clouds, with a high near 82. Light and variable wind.

    High: 82 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 84. East wind 5 to 7 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 82. Light and variable wind.
Tonight
Partly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 84. East wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 87. Calm wind. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Mostly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Catawissa MO
 38.41°N 90.75°W (Elev. 610 ft)
Last Update:
5:41 am CDT Aug 24, 2026
Forecast Valid:
7am CDT Aug 24, 2026-6pm CDT Aug 30, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation