Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

81°F

27°C

Humidity 48%
Wind Speed SE 6 mph
Barometer 30.16 in
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Heat Index81°F (27°C)
Last update 25 Sep 11:50 am CDT
Extended Forecast for

Sherman TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 90. East wind around 5 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 70. Southeast wind around 5 mph.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 92. South wind around 5 mph.

    High: 92 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 95. South wind around 5 mph.

    High: 95 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94. South wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%.

    High: 91 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 90. East wind around 5 mph.
Tonight
Mostly cloudy, with a low around 70. Southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 92. South wind around 5 mph.
Saturday Night
Mostly clear, with a low around 72. South wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 95. South wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 73. Southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 94. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 68.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Sherman TX
 33.62°N 96.63°W (Elev. 748 ft)
12:46 pm CDT Sep 25, 2026
12pm CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database