Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week 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. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

83°F

28°C

Humidity 41%
Wind Speed S 6 mph
Barometer 29.95 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 Aug 12:15 am CDT
Extended Forecast for

5 Miles NNW Bells TX

Heat Advisory until August 26, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 26, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Overnight

    Low: 80 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 101. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 101 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. North northwest wind around 5 mph becoming calm  after midnight.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 99. Heat index values as high as 105. Northeast wind 5 to 10 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Northeast wind 5 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. East northeast wind around 5 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 73. East wind around 5 mph.

    Low: 73 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. South southeast wind around 5 mph.

    High: 100 °F

    Hot

Detailed Forecast

Overnight
Partly cloudy, with a low around 80. South southwest wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 101. Southwest wind 5 to 10 mph becoming north in the afternoon.
Wednesday Night
Partly cloudy, with a low around 75. North northwest wind around 5 mph becoming calm after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 105. Northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 72. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 98. East northeast wind around 5 mph.
Friday Night
Clear, with a low around 73. East wind around 5 mph.
Saturday
Sunny and hot, with a high near 100. South southeast wind around 5 mph.
Saturday Night
Clear, with a low around 74. East southeast wind around 5 mph.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Clear, with a low around 76.
Monday
Sunny and hot, with a high near 101.
Monday Night
Clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 101.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Bells TX
 33.69°N 96.47°W (Elev. 558 ft)
12:01 am CDT Aug 26, 2026
12am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

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