



Marine and Coastal Impacts from Imelda; Unsettled Weather in the West
Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
81°F
27°C
Humidity | 51% |
Wind Speed | E 5 mph |
Barometer | 30.14 in |
Dewpoint | 61°F (16°C) |
Visibility | 10.00 mi |
Heat Index | 82°F (28°C) |
Last update | 30 Sep 11:50 am CDT |
Extended Forecast for
Denison TX
This Afternoon
High: 85 °F
Mostly Sunny
Tonight
Low: 64 °F
Mostly Clear
Wednesday
High: 88 °F
Sunny
Wednesday Night
Low: 64 °F
Clear
Thursday
High: 89 °F
Sunny
Thursday Night
Low: 66 °F
Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 65 °F
Clear
Saturday
High: 86 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 85. Calm wind becoming north northeast around 5 mph.
Tonight
Mostly clear, with a low around 64. East northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 88. Calm wind becoming east southeast around 5 mph.
Wednesday Night
Clear, with a low around 64. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 89. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 66. East southeast wind around 5 mph.
Friday
Sunny, with a high near 88. East southeast wind around 5 mph.
Friday Night
Clear, with a low around 65. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 86. Southeast wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Denison TX
33.75°N 96.57°W (Elev. 748 ft)
33.75°N 96.57°W (Elev. 748 ft)
5:06 am CDT Sep 30, 2025
12pm CDT Sep 30, 2025-6pm CDT Oct 6, 2025