Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Mostly Cloudy
75°F
24°C
| Humidity | 74% |
| Wind Speed | S 18 mph |
| Barometer | 29.90 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 17 Apr 10:50 am CDT |
Extended Forecast for
Grayson County Airport TX
Today
High: 82 °F
Partly Sunny
Tonight
Low: 52 °F
Mostly Cloudy
then ShowersSaturday
High: 63 °F
Showers
Likely then
Chance
ShowersSaturday Night
Low: 42 °F
Mostly Clear
Sunday
High: 71 °F
Sunny
Sunday Night
Low: 48 °F
Partly Cloudy
Monday
High: 71 °F
Partly Sunny
Monday Night
Low: 55 °F
Mostly Cloudy
Tuesday
High: 72 °F
Mostly Cloudy
Detailed Forecast
Today
Partly sunny, with a high near 82. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
Showers and possibly a thunderstorm, mainly after 1am. Low around 52. South wind 15 to 20 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms likely before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 63. North wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly clear, with a low around 42. North wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 71. North northeast wind around 5 mph becoming east southeast in the morning.
Sunday Night
Partly cloudy, with a low around 48. South southeast wind around 5 mph.
Monday
Partly sunny, with a high near 71. South wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 55. South wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 72. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
Partly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Additional Forecasts and Information
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Point Forecast:
Grayson County Airport TX
33.71°N 96.66°W (Elev. 797 ft)
33.71°N 96.66°W (Elev. 797 ft)
6:06 am CDT Apr 17, 2026
11am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
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