Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Saturday

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into the Tennessee Valley Saturday. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys Saturday. Extreme heat will continue for the Intermountain West and Plains. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Mostly Cloudy

93°F

34°C

Humidity	49%
Wind Speed	S 9 mph
Barometer	30.02 in (1015.6 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	100°F (38°C)
Last update	11 Jul 2:53 pm CDT

More Information:

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

Extended Forecast for

Prosper TX

This Afternoon
High: 98 °F
Sunny
Tonight
Low: 79 °F
Mostly Clear
Sunday
High: 95 °F
Sunny then
Chance
T-storms
Sunday Night
Low: 75 °F
Showers
Likely then
Chance
T-storms
Monday
High: 94 °F
Chance
T-storms
Monday Night
Low: 74 °F
Chance
T-storms then
Chance
Showers
Tuesday
High: 93 °F
Sunny then
Slight Chance
T-storms
Tuesday Night
Low: 74 °F
Partly Cloudy
Wednesday
High: 92 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 98. Heat index values as high as 105. South wind around 10 mph.

Tonight

Mostly clear, with a low around 79. South wind 5 to 10 mph.

Sunday

A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 103. South southwest wind around 5 mph becoming east southeast in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 75. East wind around 5 mph becoming south after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 94. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

Monday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 74. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming south southwest after midnight.

Wednesday

Mostly sunny, with a high near 92. South wind 5 to 10 mph.

Wednesday Night

Partly cloudy, with a low around 75.

Thursday

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

Thursday Night

Mostly clear, with a low around 77.

Friday

Sunny, with a high near 97.