Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Heat Advisory until August 17, 08:00 PM CDT

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

83°F

28°C

Humidity	70%
Wind Speed	S 7 mph
Barometer	30.01 in (1015.3 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	16 Aug 11:53 pm CDT

More Information:

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

Extended Forecast for

3 Miles NNW Murphy TX

Heat Advisory August 17, 12:02am until August 17, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 17, 12:02am until August 17, 08:00pm
NOW until 8:00pm Sun
Heat Advisory
Overnight
Low: 79 °F
Partly Cloudy
Sunday
High: 98 °F
Slight Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 77 °F
Partly Cloudy
Monday
High: 99 °F
Mostly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 78 °F
Mostly Clear
Tuesday
High: 98 °F
Sunny then
Slight Chance
T-storms
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 96 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Overnight

Partly cloudy, with a low around 79. South wind around 5 mph.

Sunday

A slight chance of showers before 10am, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Heat index values as high as 106. South wind 5 to 10 mph. Chance of precipitation is 20%.

Sunday Night

Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

Monday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Heat index values as high as 109. South wind around 5 mph.

Monday Night

Mostly clear, with a low around 78. East southeast wind around 5 mph becoming calm in the evening.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 76. East wind around 5 mph becoming calm in the evening.

Wednesday

A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 96. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon. Chance of precipitation is 50%.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northeast wind around 5 mph. Chance of precipitation is 40%.

Thursday

A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 92. Chance of precipitation is 40%.

Thursday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

Friday Night

Mostly clear, with a low around 72.

Saturday

Sunny, with a high near 92.