Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

77°F

25°C

Humidity 69%
Wind Speed SW 6 mph
Barometer 30.17 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Sep 6:55 am CDT
Extended Forecast for

6 Miles SSE Denison TX

  • Today

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

    High: 99 °F

    Hot

  • Tonight

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

    Low: 74 °F

    Clear

  • Saturday

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

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. South southeast wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 95. Calm wind becoming north northwest around 5 mph in the morning.

    High: 95 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 70. North northeast wind around 5 mph.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 91. North northeast wind around 10 mph.

    High: 91 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.
Tonight
Clear, with a low around 74. Southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 98. South wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South southeast wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 95. Calm wind becoming north northwest around 5 mph in the morning.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 70. North northeast wind around 5 mph.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 91. North northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Denison TX
 33.69°N 96.52°W (Elev. 650 ft)
6:06 am CDT Sep 18, 2026
7am CDT Sep 18, 2026-6pm CDT Sep 24, 2026
 
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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