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

82°F

28°C

Humidity 44%
Wind Speed S 9 mph
Barometer 29.82 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Mar 7:15 pm CDT
Extended Forecast for

Denison TX

  • Tonight

    Tonight: Clear, with a low around 67. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 92. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind around 10 mph becoming north northeast in the evening.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57. East wind around 10 mph.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. East southeast wind around 10 mph becoming south in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Southeast wind around 10 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 67. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 92. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind around 10 mph becoming north northeast in the evening.
Monday
Mostly sunny, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 57. East wind around 10 mph.
Tuesday
Mostly sunny, with a high near 83. East southeast wind around 10 mph becoming south in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Southeast wind around 10 mph.
Wednesday
Sunny, with a high near 88. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
Last Update:
6:07 pm CDT Mar 21, 2026
Forecast Valid:
7pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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