Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Overcast

75°F

24°C

Humidity	84%
Wind Speed	NE 5 mph
Barometer	30.00 in (1015.7 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	29 Aug 3:53 pm CDT

More Information:

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

Extended Forecast for

McKinney TX

Tonight
Low: 71 °F
Mostly Cloudy
then Slight
Chance
Showers
Saturday
High: 84 °F
Chance
Showers
Saturday Night
Low: 71 °F
Slight Chance
T-storms then
Chance
T-storms
Sunday
High: 83 °F
Showers
Likely
Sunday Night
Low: 70 °F
Chance
T-storms
Labor Day
High: 87 °F
Slight Chance
Showers
Monday Night
Low: 68 °F
Mostly Clear
Tuesday
High: 88 °F
Sunny
Tuesday Night
Low: 65 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 71. East northeast wind 5 to 10 mph.

Saturday

A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 84. East wind around 5 mph. Chance of precipitation is 30%.

Saturday Night

A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 71. East wind around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 83. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Labor Day

A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the morning.

Monday Night

Mostly clear, with a low around 68. North northeast wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 88. Northwest wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 65. North wind 5 to 10 mph.

Wednesday

Sunny, with a high near 87.

Wednesday Night

Mostly clear, with a low around 65.