Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Air Quality Alert

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Mostly Cloudy

84°F

29°C

Humidity	65%
Wind Speed	NA
Barometer	30.17 in (1021.0 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	2 Aug 11:53 am CDT

More Information:

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

Extended Forecast for

4 Miles WNW Allen TX

This Afternoon
High: 90 °F
Slight Chance
T-storms
Tonight
Low: 72 °F
Mostly Clear
Sunday
High: 91 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Chance
T-storms
Monday
High: 89 °F
Chance
T-storms then
Chance
Showers
Monday Night
Low: 72 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 74 °F
Clear
Wednesday
High: 97 °F
Sunny

Detailed Forecast

This Afternoon

A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 90. Heat index values as high as 98. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

Tonight

Mostly clear, with a low around 72. East wind 5 to 10 mph.

Sunday

Mostly sunny, with a high near 91. East wind 5 to 10 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. East wind 5 to 10 mph.

Monday

A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 89. East southeast wind around 5 mph.

Monday Night

Mostly clear, with a low around 72. East wind 5 to 10 mph.

Tuesday

Sunny, with a high near 94. Southeast wind around 5 mph.