Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

89°F

32°C

Humidity	35%
Wind Speed	S 6 mph
Barometer	29.91 in (1012.0 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	25 Aug 8:53 pm CDT

More Information:

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

Extended Forecast for

Collin County Regional Airport TX

Heat Advisory until August 26, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until August 26, 09:00pm
NOW until 9:00pm Wed
Heat Advisory
Tonight
Low: 82 °F
Mostly Clear
Wednesday
High: 101 °F
Mostly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 76 °F
Slight Chance
T-storms
Thursday
High: 97 °F
Sunny
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 97 °F
Sunny
Friday Night
Low: 73 °F
Clear
Saturday
High: 99 °F
Hot

Detailed Forecast

Tonight

Mostly clear, with a low around 82. South wind around 10 mph, with gusts as high as 20 mph.

Wednesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 101. Heat index values as high as 105. South southwest wind around 10 mph becoming north in the afternoon.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. West northwest wind 5 to 10 mph becoming north northeast in the evening. Chance of precipitation is 20%.

Thursday

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

Thursday Night

Mostly clear, with a low around 74. Northeast wind 5 to 10 mph.

Friday

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

Friday Night

Clear, with a low around 73. East southeast wind 5 to 10 mph.

Saturday

Sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.

Saturday Night

Clear, with a low around 75. East southeast wind 5 to 10 mph.