Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from July 25, 12:00 PM CDT until July 25, 08:00 PM CDT

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

82°F

28°C

Humidity	74%
Wind Speed	S 9 mph
Barometer	30.04 in (1016.4 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	25 Jul 4:53 am CDT

More Information:

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

Extended Forecast for

3 Miles E Prosper TX

Heat Advisory July 25, 12:00pm until July 25, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 99 °F
Hot
Tonight
Low: 81 °F
Mostly Clear
Sunday
High: 101 °F
Hot
Sunday Night
Low: 80 °F
Clear
Monday
High: 102 °F
Hot
Monday Night
Low: 82 °F
Mostly Clear
Tuesday
High: 103 °F
Hot
Tuesday Night
Low: 82 °F
Mostly Clear
Wednesday
High: 103 °F
Hot

Detailed Forecast

Today

Partly sunny, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 107. Southwest wind around 10 mph, with gusts as high as 20 mph.

Tonight

Mostly clear, with a low around 81. South southwest wind 5 to 10 mph.

Sunday

Sunny and hot, with a high near 101. Heat index values as high as 107. Southwest wind around 10 mph.

Sunday Night

Clear, with a low around 80. South wind around 10 mph.

Monday

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

Monday Night

Mostly clear, with a low around 82. South wind 5 to 10 mph.

Tuesday

Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.