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

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

77°F

25°C

Humidity 67%
Wind Speed SW 3 mph
Barometer 30.15 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Sep 5:35 am CDT
Extended Forecast for

2 Miles NE Grayson County Airport TX

  • Today

    Today: Sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 98. South wind around 10 mph.

    High: 98 °F

    Sunny

  • Saturday Night

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

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. South southwest wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South southeast wind around 5 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94. South wind around 5 mph becoming north in the afternoon.

    High: 94 °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 90. North northeast wind around 10 mph.

    High: 90 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 98. South wind 5 to 10 mph.
Tonight
Clear, with a low around 75. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 98. South wind around 10 mph.
Saturday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. South southwest wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South southeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94. South wind around 5 mph becoming north in the afternoon.
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 90. North northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 91.
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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 Sep 18, 2026
Forecast Valid:
5am CDT Sep 18, 2026-6pm CDT Sep 24, 2026
 
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Additional Resources

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