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

79°F

26°C

Humidity 84%
Wind Speed SW 17 G 23 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Heat Index83°F (28°C)
Last update 26 Jun 9:50 am CDT
Extended Forecast for

3 Miles N Collinsville TX

  • Today

    Today: Mostly sunny, with a high near 91. Heat index values as high as 100. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93. Heat index values as high as 100. South wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly 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 95. South wind around 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. South wind around 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. South wind around 10 mph.

    High: 96 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. Heat index values as high as 100. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 93. Heat index values as high as 100. 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 95. South wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 77. South wind around 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 96. South wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 96. South wind around 10 mph.
Tuesday Night
Clear, with a low around 78.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Collinsville TX
 33.61°N 96.9°W (Elev. 735 ft)
Last Update:
8:31 am CDT Jun 26, 2026
Forecast Valid:
10am CDT Jun 26, 2026-6pm CDT Jul 2, 2026
 
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