Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

95°F

35°C

Humidity 44%
Wind Speed NE 7 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 27 Aug 12:53 pm CDT
Extended Forecast for

Murphy TX

Heat Advisory August 27, 01:40pm until August 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 27, 01:40pm until August 27, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. East northeast wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Heat index values as high as 105. Light northeast wind becoming east northeast 5 to 10 mph in the afternoon.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. East wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Southeast wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Saturday Night

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

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. South wind around 10 mph.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 78. South southeast wind 5 to 10 mph.

    Low: 78 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 108. Light and variable wind becoming northeast 10 to 15 mph. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 76. East northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Friday
Sunny and hot, with a high near 100. Heat index values as high as 105. Light northeast wind becoming east northeast 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. East wind around 5 mph.
Saturday
Sunny and hot, with a high near 100. Southeast wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 78. Southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 100. South wind around 10 mph.
Sunday Night
Clear, with a low around 78. South southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 99. South wind around 10 mph.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
Murphy TX
 33.01°N 96.62°W (Elev. 548 ft)
1:26 pm CDT Aug 27, 2026
1pm CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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