Dangerous Heat and Possible Flooding
Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
A Few Clouds
100°F
38°C
| Humidity | 27% |
| Wind Speed | SE 5 mph |
| Barometer | 29.99 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 9.00 mi |
| Heat Index | 101°F (38°C) |
| Last update | 28 Aug 4:50 pm CDT |
Extended Forecast for
5 Miles NW Pottsboro TX
Tonight
Low: 75 °F
Clear
Saturday
High: 99 °F
Hot
Saturday Night
Low: 78 °F
Mostly Clear
Sunday
High: 99 °F
Hot
Sunday Night
Low: 79 °F
Clear
Monday
High: 98 °F
Sunny
Monday Night
Low: 79 °F
Clear
Tuesday
High: 97 °F
Sunny
Tuesday Night
Low: 79 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 75. East wind around 5 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 99. Heat index values as high as 102. East wind around 5 mph.
Saturday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 103. South wind 5 to 10 mph.
Sunday Night
Clear, with a low around 79. South wind 5 to 10 mph.
Monday
Sunny, with a high near 98. South wind 5 to 10 mph.
Monday Night
Clear, with a low around 79. South southeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 98.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny and hot, with a high near 99.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles NW Pottsboro TX
33.82°N 96.74°W (Elev. 728 ft)
33.82°N 96.74°W (Elev. 728 ft)
6:07 pm CDT Aug 28, 2026
6pm CDT Aug 28, 2026-6pm CDT Sep 4, 2026
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