Early Week Impacts Include Monsoon and Heat

Monsoonal showers and thunderstorms may result in flash flooding and debris flows from the from the Southwest into the Four Corners and central Rockies through midweek. Summer heat with above normal temperatures are likely for the central Plains into Tuesday. Excessive heat is expected to build across the Northwest and the Central Valley of California by Tuesday, lasting for a few days. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

83°F

28°C

Humidity	65%
Wind Speed	S 8 mph
Barometer	29.93 in (1012.6 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	15 Aug 12:53 am CDT

More Information:

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

Extended Forecast for

Melissa TX

Overnight

Partly Cloudy
Low: 77 °F
Monday

Hot
High: 100 °F
Monday
Night

Mostly Clear
Low: 78 °F
Tuesday

Hot
High: 102 °F
Tuesday
Night

Partly Cloudy
Low: 79 °F
Wednesday

Mostly Sunny
then Chance
T-storms
High: 102 °F
Wednesday
Night

Chance
T-storms
Low: 71 °F
Thursday

Chance
T-storms
High: 91 °F
Thursday
Night

Mostly Clear
Low: 70 °F

Detailed Forecast

Overnight

Partly cloudy, with a low around 77. South wind around 5 mph.

Monday

Sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.

Monday Night

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

Tuesday

Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 79. South wind 5 to 10 mph.

Wednesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 102. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. North wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. North wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 70. Northeast wind 5 to 10 mph becoming light east in the evening.

Friday

Sunny, with a high near 93.

Friday Night

Mostly clear, with a low around 72.

Saturday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.