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Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
A Few Clouds
99°F
37°C
| Humidity | 33% |
| Wind Speed | SE 10 mph |
| Barometer | 30.15 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 8.00 mi |
| Heat Index | 102°F (39°C) |
| Last update | 17 Sep 3:50 pm CDT |
Extended Forecast for
3 Miles NE Knollwood TX
This Afternoon
High: 99 °F
Slight Chance
ShowersTonight
Low: 79 °F
Mostly Clear
Friday
High: 100 °F
Hot
Friday Night
Low: 76 °F
Clear
Saturday
High: 100 °F
Hot
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
High: 99 °F
Hot
Sunday Night
Low: 76 °F
Slight Chance
T-storms then
Chance
ShowersMonday
High: 96 °F
Chance
Showers
Detailed Forecast
This Afternoon
A 10 percent chance of showers. Mostly sunny and hot, with a high near 99. South southeast wind around 5 mph.
Tonight
Mostly clear, with a low around 79. Southeast wind around 5 mph.
Friday
Sunny and hot, with a high near 100. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Clear, with a low around 76. South southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Sunday
Mostly sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 76. South wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 96. South wind around 5 mph becoming north northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 95.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NE Knollwood TX
33.71°N 96.57°W (Elev. 673 ft)
33.71°N 96.57°W (Elev. 673 ft)
3:16 pm CDT Sep 17, 2026
4pm CDT Sep 17, 2026-6pm CDT Sep 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
