Areas of Dangerous Heat and Severe Thunderstorms

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 before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

90°F

32°C

Humidity 51%
Wind Speed NE 6 mph
Barometer 29.93 in
Dewpoint 69°F (21°C)
Visibility 9.00 mi
Heat Index95°F (35°C)
Last update 26 Aug 7:55 pm CDT
Extended Forecast for

Luella TX

Heat Advisory August 26, 08:11pm until August 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 08:11pm until August 27, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Tonight

    Low: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 107. Northeast wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. East northeast wind 5 to 10 mph becoming light east  in the evening.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 97. Heat index values as high as 105. Calm wind becoming east around 5 mph in the morning.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South southeast wind around 10 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. South wind around 10 mph.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 75. North northwest wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 20%.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 107. Northeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 74. East northeast wind 5 to 10 mph becoming light east in the evening.
Friday
Sunny, with a high near 97. Heat index values as high as 105. Calm wind becoming east around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 75. Southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Saturday Night
Clear, with a low around 76. South southeast wind around 10 mph.
Sunday
Sunny and hot, with a high near 99. South wind around 10 mph.
Sunday Night
Clear, with a low around 76. South wind around 10 mph.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
Luella TX
 33.57°N 96.54°W (Elev. 623 ft)
6:06 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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