Heavy Rain In The Plains; Poor Air Quality Out West

A slow moving weather system in the central U.S. will bring locally heavy rain to much of the Plains this weekend. Isolated flash flooding is possible in this area. Meanwhile, smoke from ongoing wildfires will continue to cause poor air quality across much of the interior West, although fire weather conditions are generally improving in this region. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

83°F

28°C

Humidity	67%
Wind Speed	S 6 mph
Barometer	29.99 in (1014.6 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	18 Aug 1:53 am CDT

More Information:

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

Extended Forecast for

Mc Kinney TX

Overnight

Slight Chance
T-storms
Low: 80 °F
Saturday

Mostly Sunny
then Chance
T-storms
High: 98 °F
Saturday
Night

Slight Chance
T-storms
Low: 78 °F
Sunday

Slight Chance
T-storms
High: 94 °F
Sunday
Night

Chance
T-storms
Low: 77 °F
Monday

Chance
T-storms
High: 93 °F
Monday
Night

Mostly Clear
Low: 72 °F
Tuesday

Sunny
High: 92 °F
Tuesday
Night

Mostly Clear
Low: 70 °F

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80. North northwest wind around 5 mph becoming south.

Saturday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Heat index values as high as 105. South wind around 5 mph becoming northwest in the afternoon.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East northeast wind around 5 mph becoming south southeast after midnight.

Sunday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94. Heat index values as high as 102. South wind 5 to 10 mph.

Sunday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

Monday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

Monday Night

Mostly clear, with a low around 72. West northwest wind around 5 mph becoming north after midnight.

Tuesday

Sunny, with a high near 92. North wind around 5 mph.

Tuesday Night

Mostly clear, with a low around 70. North northeast wind around 5 mph.

Wednesday

Mostly sunny, with a high near 91.

Wednesday Night

Mostly clear, with a low around 71.

Thursday

Mostly sunny, with a high near 91.