Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

79°F

26°C

Humidity 79%
Wind Speed S 12 mph
Barometer 30.11 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Jul 7:50 am CDT
Extended Forecast for

Whitesboro TX

  • Today

    Today: Mostly sunny, with a high near 95. Heat index values as high as 101. South southwest wind around 10 mph.

    High: 95 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98. Heat index values as high as 105. South southwest wind around 5 mph.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Clear

  • Tuesday

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

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75. South southeast wind around 5 mph becoming calm.

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South southeast wind around 5 mph becoming calm.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 101. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 101 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 95. Heat index values as high as 101. South southwest wind around 10 mph.
Tonight
Partly cloudy, with a low around 77. South wind 5 to 10 mph.
Monday
Sunny, with a high near 98. Heat index values as high as 105. South southwest wind around 5 mph.
Monday Night
Clear, with a low around 76. South wind around 5 mph.
Tuesday
Sunny and hot, with a high near 100. South southwest wind around 5 mph.
Tuesday Night
Clear, with a low around 75. South southeast wind around 5 mph becoming calm.
Wednesday
Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph.
Wednesday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph becoming calm.
Thursday
Sunny and hot, with a high near 101. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 97.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Whitesboro TX
 33.66°N 96.9°W (Elev. 801 ft)
5:24 am CDT Jul 27, 2025
8am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
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