Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
75°F
24°C
| Humidity | 95% |
| Wind Speed | NE 6 mph |
| Barometer | 29.88 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 19 Jun 2:15 am CDT |
Extended Forecast for
Denison TX
Overnight

Low: 73 °F
Chance
T-stormsJuneteenth

High: 83 °F
Showers
Friday Night
Low: 72 °F
Slight Chance
T-storms then
Chance
ShowersSaturday
High: 88 °F
Chance
Showers then
Chance
T-stormsSaturday Night

Low: 75 °F
Partly Cloudy
Sunday

High: 93 °F
Mostly Sunny
Sunday Night
Low: 77 °F
Mostly Clear
then Chance
T-stormsMonday

High: 90 °F
Chance
T-stormsMonday Night

Low: 74 °F
Showers
Likely
Detailed Forecast
Overnight
A 50 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. North northeast wind around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers and thunderstorms, mainly before 1pm. High near 83. North wind 5 to 10 mph becoming east southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 75. South southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 93. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind around 10 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 74. East wind around 5 mph becoming south southeast after midnight. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 87.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Denison TX
33.75°N 96.55°W (Elev. 758 ft)
33.75°N 96.55°W (Elev. 758 ft)
1:26 am CDT Jun 19, 2026
2am CDT Jun 19, 2026-6pm CDT Jun 25, 2026


