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

100°F

38°C

Humidity	25%
Wind Speed	E 3 mph
Barometer	29.98 in
Dewpoint	59°F (15°C)
Visibility	9.00 mi
Heat Index	100°F (38°C)
Last update	22 Aug 4:50 pm CDT

More Information:

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

Extended Forecast for

3 Miles S Sherman TX

Heat Advisory August 22, 05:17pm until August 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 22, 05:17pm until August 22, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
This Afternoon
High: 99 °F
Slight Chance
T-storms
Tonight
Low: 79 °F
Slight Chance
T-storms
Sunday
High: 105 °F
Hot
Sunday Night
Low: 83 °F
Mostly Clear
Monday
High: 106 °F
Hot
Monday Night
Low: 83 °F
Mostly Clear
Tuesday
High: 107 °F
Hot
Tuesday Night
Low: 79 °F
Partly Cloudy
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

A 10 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99. Southeast wind around 5 mph.

Tonight

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. South southeast wind around 5 mph becoming east northeast in the evening. Chance of precipitation is 20%.

Sunday

Mostly sunny and hot, with a high near 105. South southeast wind 5 to 10 mph becoming southwest in the afternoon.

Sunday Night

Mostly clear, with a low around 83. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Monday

Mostly sunny and hot, with a high near 106. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 83. South wind around 10 mph.

Tuesday

Sunny and hot, with a high near 107. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79. South wind 5 to 10 mph.

Wednesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 102. South southwest wind 5 to 10 mph becoming northwest in the afternoon.

Wednesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76.

Thursday

Mostly sunny and hot, with a high near 101.

Thursday Night

A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.

Friday

Sunny and hot, with a high near 101.

Friday Night

Mostly clear, with a low around 77.

Saturday

Sunny and hot, with a high near 101.