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.

Partly Cloudy

78°F

26°C

Humidity 84%
Wind Speed S 9 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 25 Jun 3:15 am CDT
Extended Forecast for

Sherman TX

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 78. South wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 76. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 92. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. South wind around 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 77. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 78. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 76. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 92. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 95. South wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 96. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 77. South wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 97.
Monday Night
Clear, with a low around 77.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Clear, with a low around 78.
Wednesday
Sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sherman TX
 33.62°N 96.63°W (Elev. 748 ft)
Last Update:
1:26 am CDT Jun 25, 2026
Forecast Valid:
3am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
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Additional Resources

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