Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. 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

98°F

37°C

Humidity	29%
Wind Speed	SE 8 mph
Barometer	29.93 in (1012.8 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	31 Aug 5:53 pm CDT

More Information:

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

Extended Forecast for

Lucas TX

Tonight
Low: 78 °F
Mostly Clear
Tuesday
High: 99 °F
Hot
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 77 °F
Slight Chance
T-storms then
Chance
Showers
Thursday
High: 97 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday Night
Low: 77 °F
Mostly Clear
Friday
High: 98 °F
Sunny
Friday Night
Low: 77 °F
Mostly Clear

Detailed Forecast

Tonight

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

Tuesday

Sunny and hot, with a high near 99. Heat index values as high as 104. East southeast wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

Wednesday

A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 96. Heat index values as high as 106. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Thursday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 97. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Thursday Night

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

Friday

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

Friday Night

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

Saturday

Sunny, with a high near 98.

Saturday Night

Mostly clear, with a low around 77.

Sunday

Sunny and hot, with a high near 99.