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 >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Regional Airport (KOSA)

Lat: 33.1°NLon: 94.96°WElev: 364ft.

Fair

78°F

26°C

Humidity 76%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 24 Aug 6:10 am CDT
Extended Forecast for

10 Miles S De Kalb TX

Heat Advisory August 24, 06:35am until August 24, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 24, 06:35am until August 24, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Today

    High: 101 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 101. Heat index values as high as 109. South wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 100. Southwest wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

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

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny and hot, with a high near 101. Heat index values as high as 109. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Tuesday
Mostly sunny and hot, with a high near 101. Heat index values as high as 109. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Wednesday
Mostly sunny and hot, with a high near 100. Southwest wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 74.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 72.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S De Kalb TX
 33.38°N 94.62°W (Elev. 292 ft)
Last Update:
6:30 am CDT Aug 24, 2026
Forecast Valid:
6am 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