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

Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

76°F

24°C

Humidity 65%
Wind Speed E 6 mph
Barometer 29.91 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Aug 1:55 am CDT
Extended Forecast for

2 Miles NE Grayson County Airport TX

  • Overnight

    Overnight: Clear, with a low around 70. Calm wind.

    Low: 70 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 96. East southeast wind around 5 mph becoming south in the afternoon.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. Heat index values as high as 103. South southeast wind around 5 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Clear

  • Wednesday

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

    High: 99 °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, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 70. Calm wind.
Monday
Sunny, with a high near 96. East southeast wind around 5 mph becoming south in the afternoon.
Monday Night
Clear, with a low around 74. Southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 100. Heat index values as high as 103. South southeast wind around 5 mph.
Tuesday Night
Clear, with a low around 77. South southeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 98. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 76.
Saturday
Mostly sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Grayson County Airport TX
 33.75°N 96.63°W (Elev. 840 ft)
Last Update:
1:26 am CDT Aug 3, 2026
Forecast Valid:
2am CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

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