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Hazardous Weather Conditions
Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
86°F
30°C
| Humidity | 55% |
| Wind Speed | S 9 mph |
| Barometer | 29.92 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 7 Sep 12:15 am CDT |
Extended Forecast for
Howe TX
Heat Advisory September 7, 12:26am until September 7, 08:00pm
NOW until 8:00pm Mon

Heat Advisory
Overnight

Low: 77 °F
Clear
Labor Day
High: 99 °F
Sunny then
Slight Chance
T-stormsMonday Night
Low: 78 °F
Slight Chance
T-storms then
ClearTuesday
High: 99 °F
Sunny then
Slight Chance
T-stormsTuesday Night

Low: 78 °F
Mostly Clear
Wednesday

High: 98 °F
Sunny
Wednesday Night

Low: 77 °F
Mostly Clear
Thursday

High: 96 °F
Mostly Sunny
Detailed Forecast
Overnight
Clear, with a low around 77. South southwest wind around 5 mph.
Labor Day
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
A 10 percent chance of showers and thunderstorms before 7pm. Clear, with a low around 78. South southeast wind 5 to 10 mph.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds and hot, with a high near 99. Heat index values as high as 104. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 98. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 96. South southwest wind around 5 mph becoming east northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Howe TX
33.5°N 96.63°W (Elev. 814 ft)
33.5°N 96.63°W (Elev. 814 ft)
11:51 pm CDT Sep 6, 2026
12am CDT Sep 7, 2026-6pm CDT Sep 13, 2026



