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 SE 5 mph
Barometer 29.91 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Aug 12:15 am CDT
Extended Forecast for

4 Miles NNE Denison TX

  • Overnight

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

    Low: 70 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

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

    Low: 74 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Southeast wind around 5 mph.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South southeast wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

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

    High: 100 °F

    Hot

  • Thursday Night

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

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 70. Calm wind.
Monday
Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Clear, with a low around 74. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 102. Southeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 101. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 78. South southeast wind around 5 mph.
Thursday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. South southeast wind around 5 mph.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 77.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Denison TX
 33.8°N 96.52°W (Elev. 518 ft)
Last Update:
6:12 pm CDT Aug 2, 2026
Forecast Valid:
12am CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation