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.

Fair

93°F

34°C

Humidity	52%
Wind Speed	N 9 mph
Barometer	30.07 in (1017.5 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	1 Aug 6:53 pm CDT

More Information:

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

Extended Forecast for

Allen TXSimilar City Names

Tonight
Low: 73 °F
Chance
T-storms
Saturday
High: 89 °F
Chance
Showers
Saturday Night
Low: 72 °F
Mostly Clear
Sunday
High: 92 °F
Mostly Sunny
Sunday Night
Low: 72 °F
Chance
T-storms
Monday
High: 91 °F
Chance
T-storms then
Chance
Showers
Monday Night
Low: 71 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 75 °F
Clear

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 73. North northeast wind 5 to 10 mph becoming east southeast in the evening.

Saturday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 89. Heat index values as high as 98. Northeast wind 5 to 10 mph.

Saturday Night

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

Sunday

Mostly sunny, with a high near 92. Heat index values as high as 99. East wind around 5 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. East wind 5 to 10 mph.

Monday

A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. East wind around 5 mph.

Monday Night

Mostly clear, with a low around 71. East northeast wind 5 to 10 mph becoming southeast after midnight.

Tuesday

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