Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

99°F

37°C

Humidity	29%
Wind Speed	Vrbl 5 mph
Barometer	29.98 in (1014.3 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	30 Jul 3:53 pm CDT

More Information:

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

Extended Forecast for

Melissa TX

Heat Advisory July 30, 04:09pm until July 30, 07:00pm

Click here for hazard details and duration

...

Heat Advisory July 30, 04:09pm until July 30, 07:00pm
NOW until 7:00pm Wed
Heat Advisory
Tonight
Low: 78 °F
Mostly Clear
Thursday
High: 102 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 76 °F
Slight Chance
T-storms then
Partly Cloudy
Friday
High: 94 °F
Mostly Sunny
then Slight
Chance
T-storms
Friday Night
Low: 73 °F
Slight Chance
T-storms
Saturday
High: 89 °F
Chance
T-storms
Saturday Night
Low: 72 °F
Partly Cloudy
Sunday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Tonight

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

Thursday

A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 102. Heat index values as high as 105. Calm wind becoming south southwest around 5 mph in the afternoon.

Thursday Night

A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. East northeast wind around 5 mph.

Friday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Northeast wind 5 to 10 mph.

Friday Night

A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 73. Northeast wind 5 to 10 mph.

Saturday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 89. Northeast wind 5 to 10 mph.

Saturday Night

Partly cloudy, with a low around 72. East wind 5 to 10 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Southeast wind 5 to 10 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. East southeast wind 5 to 10 mph.

Monday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.