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

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

81°F

27°C

Humidity 65%
Wind Speed SW 6 mph
Barometer 30.13 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 16 Aug 7:35 am CDT
Extended Forecast for

McLendon-Chisholm TX

Heat Advisory August 16, 07:42am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 07:42am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Today

    High: 103 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 104. Southwest wind around 10 mph.

    High: 104 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 103. Heat index values as high as 107. South southwest wind around 10 mph.
Tonight
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph.
Monday Night
Clear, with a low around 78. South wind around 5 mph.
Tuesday
Sunny and hot, with a high near 104. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 104. Southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 104. South southwest wind around 10 mph.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 103.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny and hot, with a high near 102.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McLendon-Chisholm TX
 32.85°N 96.37°W (Elev. 505 ft)
Last Update:
6:12 am CDT Aug 16, 2026
Forecast Valid:
7am CDT Aug 16, 2026-6pm CDT Aug 22, 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