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

Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Rockwall Municipal Airport (KF46)

Lat: 32.93°NLon: 96.43°WElev: 564ft.

Fair

100°F

38°C

Humidity 28%
Wind Speed SE 3 mph
Barometer 30.03 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 16 Aug 6:15 pm CDT
Extended Forecast for

3 Miles SSW McLendon-Chisholm TX

Heat Advisory August 16, 06:38pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 06:38pm until August 17, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 76 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 105. Heat index values as high as 108. South southwest wind 5 to 10 mph becoming west in the afternoon.

    High: 105 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. South southwest wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104. Heat index values as high as 111. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 103. South southwest wind around 10 mph.

    High: 103 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 104. South southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 76. South wind around 5 mph.
Monday
Sunny and hot, with a high near 105. Heat index values as high as 108. South southwest wind 5 to 10 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 77. South southwest wind around 5 mph.
Tuesday
Sunny and hot, with a high near 104. Heat index values as high as 111. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 103. South southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 104. South southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. South wind around 5 mph.
Friday
Sunny and hot, with a high near 102.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 101.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW McLendon-Chisholm TX
 32.81°N 96.4°W (Elev. 499 ft)
Last Update:
6:12 pm CDT Aug 16, 2026
Forecast Valid:
6pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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