Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Heat Advisory until August 22, 08:00 PM CDT

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

88°F

31°C

Humidity	52%
Wind Speed	SW 7 mph
Barometer	30.06 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	92°F (33°C)
Last update	22 Aug 8:50 am CDT

More Information:

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

Extended Forecast for

2 Miles ENE Knollwood TX

Heat Advisory August 22, 09:21am until August 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 22, 09:21am until August 22, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Today
High: 102 °F
Slight Chance
T-storms
Tonight
Low: 78 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 105 °F
Hot
Sunday Night
Low: 82 °F
Mostly Clear
Monday
High: 107 °F
Hot
Monday Night
Low: 84 °F
Mostly Clear
Tuesday
High: 106 °F
Hot
Tuesday Night
Low: 81 °F
Mostly Clear

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 102. South southwest wind around 5 mph becoming southeast in the afternoon.

Tonight

A 10 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming north northeast in the evening.

Sunday

Mostly sunny and hot, with a high near 105. East wind around 5 mph becoming south in the afternoon.

Sunday Night

Mostly clear, with a low around 82. South wind 5 to 10 mph.

Monday

Sunny and hot, with a high near 107. Southwest wind around 10 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 84. South wind around 10 mph.

Tuesday

Sunny and hot, with a high near 106. Southwest wind around 10 mph.

Tuesday Night

Mostly clear, with a low around 81. South southwest wind around 5 mph.