Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

97°F

36°C

Humidity	23%
Wind Speed	S 13 mph
Barometer	29.91 in
Dewpoint	53°F (12°C)
Visibility	8.00 mi
Heat Index	95°F (35°C)
Last update	25 Aug 7:15 pm CDT

More Information:

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

Extended Forecast for

3 Miles WSW Cartwright OK

Heat Advisory August 25, 09:00pm until August 26, 09:00pm

Extreme Heat Warning August 25, 07:27pm until August 25, 09:00pm

Click here for hazard details and duration

Heat Advisory

...

Extreme Heat Warning August 25, 07:27pm until August 25, 09:00pm
NOW until 9:00pm Tue
Extreme Heat Warning
Tonight
Low: 81 °F
Mostly Clear
Wednesday
High: 99 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 77 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday
High: 96 °F
Slight Chance
Showers then
Sunny
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 96 °F
Sunny
Friday Night
Low: 74 °F
Clear
Saturday
High: 97 °F
Sunny

Detailed Forecast

Tonight

Mostly clear, with a low around 81. South wind 10 to 15 mph, with gusts as high as 20 mph.

Wednesday

A slight chance of showers, with thunderstorms also possible after 1pm. Patchy smoke between 10am and 11am. Mostly sunny and hot, with a high near 99. Heat index values as high as 104. Southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Partly cloudy, with a low around 77. North wind around 5 mph. Chance of precipitation is 20%.

Thursday

A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 96. North northeast wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 74. North northeast wind 5 to 10 mph.

Friday

Sunny, with a high near 96. East northeast wind around 5 mph.

Friday Night

Clear, with a low around 74. East wind around 5 mph.

Saturday

Sunny, with a high near 97. South southeast wind around 5 mph.

Saturday Night

Clear, with a low around 77. East southeast wind 5 to 10 mph.