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

71°F

22°C

Humidity 78%
Wind Speed W 5 mph
Barometer 29.92 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 5:15 am CDT
Extended Forecast for

4 Miles NNE Denison TX

  • Today

    Today: Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Tonight

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

    Low: 74 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 104. South southeast wind around 5 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South 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 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

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

    High: 100 °F

    Hot

  • Thursday Night

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

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Clear, with a low around 74. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 104. South southeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 78. South 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 79. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 76.
Saturday
Mostly sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Denison TX
 33.8°N 96.55°W (Elev. 640 ft)
Last Update:
1:26 am CDT Aug 3, 2026
Forecast Valid:
5am CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation