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.

Fair

100°F

38°C

Humidity	31%
Wind Speed	SW 20 G 26 mph
Barometer	29.94 in
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	25 Aug 1:55 pm CDT

More Information:

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

Extended Forecast for

Dorchester TX

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

Extreme Heat Warning August 25, 02:05pm until August 25, 09:00pm

Click here for hazard details and duration

Heat Advisory

Extreme Heat Warning

Extreme Heat Warning August 25, 02:05pm until August 25, 09:00pm
NOW until 9:00pm Tue
Extreme Heat Warning
This Afternoon
High: 104 °F
Hot
Tonight
Low: 81 °F
Mostly Clear
Wednesday
High: 98 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 76 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday
High: 96 °F
Mostly Sunny
Thursday Night
Low: 73 °F
Mostly Clear
Friday
High: 96 °F
Sunny
Friday Night
Low: 73 °F
Clear

Detailed Forecast

This Afternoon

Sunny and hot, with a high near 104. South southwest wind around 15 mph, with gusts as high as 20 mph.

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 between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Heat index values as high as 103. South southwest wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 76. North wind around 5 mph. Chance of precipitation is 20%.

Thursday

Mostly sunny, with a high near 96. North northeast wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 73. 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 73. East wind around 5 mph.

Saturday

Sunny, with a high near 96. South southeast wind 5 to 10 mph.

Saturday Night

Clear, with a low around 76.