Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. East Coast impacts. 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

77°F

25°C

Humidity	82%
Wind Speed	Calm
Barometer	29.96 in (1014.2 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	12 Aug 8:53 pm CDT

More Information:

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

Extended Forecast for

5 Miles N Princeton TX

Tonight
Low: 74 °F
Scattered
T-storms
Wednesday
High: 93 °F
Scattered
T-storms
Wednesday Night
Low: 74 °F
Mostly Clear
Thursday
High: 96 °F
Mostly Sunny
Thursday Night
Low: 77 °F
Mostly Clear
Friday
High: 98 °F
Sunny
Friday Night
Low: 78 °F
Mostly Clear
Saturday
High: 97 °F
Sunny
Saturday Night
Low: 77 °F
Mostly Clear

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.

Wednesday

Scattered showers and thunderstorms, mainly before 10am. Mostly sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

Wednesday Night

Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming south around 5 mph in the morning.

Thursday Night

Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

Friday

Sunny, with a high near 98. South wind 5 to 10 mph.

Friday Night

Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.

Saturday

Sunny, with a high near 97. South wind 5 to 10 mph.