Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

77°F

25°C

Humidity	80%
Wind Speed	SE 8 mph
Barometer	30.00 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	4 Aug 12:55 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Gainesville TX

Overnight
Low: 72 °F
T-storms
Likely
Monday
High: 88 °F
T-storms
Likely then
Mostly Sunny
Monday Night
Low: 69 °F
Mostly Clear
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny
Wednesday Night
Low: 74 °F
Mostly Clear
Thursday
High: 99 °F
Hot
Thursday Night
Low: 74 °F
Mostly Clear

Detailed Forecast

Overnight

Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a steady temperature around 72. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

Showers and thunderstorms likely, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 88. Heat index values as high as 97. East northeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

Mostly clear, with a low around 69. East wind around 5 mph becoming calm.

Tuesday

Sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph.

Tuesday Night

Mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 96. Calm wind becoming south around 5 mph in the morning.

Wednesday Night

Mostly clear, with a low around 74. South wind around 5 mph.

Thursday

Sunny and hot, with a high near 99. South wind around 5 mph.