National Weather Service Forecast for: McKinney TX
Issued by: National Weather Service Dallas/Fort Worth, TX
Updated: 6:06 am CDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 87. South southwest wind around 10 mph.
Sunny
 Tonight

Tonight: Clear, with a low around 59. South wind around 5 mph.
Clear
 Friday

Friday: Sunny, with a high near 92. South wind around 5 mph.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 63. South southeast wind around 5 mph.
Clear
 Saturday

Saturday: Sunny, with a high near 94. South southwest wind 5 to 10 mph.
Sunny
 Saturday
Night
Saturday Night: Clear, with a low around 66. South wind 5 to 10 mph.
Clear
 Sunday

Sunday: Sunny, with a high near 96. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 59. South wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 79. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny
Hi 87 °F Lo 59 °F Hi 92 °F Lo 63 °F Hi 94 °F Lo 66 °F Hi 96 °F Lo 59 °F Hi 79 °F

 

This Afternoon
 
 Sunny, with a high near 87. South southwest wind around 10 mph.
Tonight
 
 Clear, with a low around 59. South wind around 5 mph.
Friday
 
 Sunny, with a high near 92. South wind around 5 mph.
Friday Night
 
 Clear, with a low around 63. South southeast wind around 5 mph.
Saturday
 
 Sunny, with a high near 94. South southwest wind 5 to 10 mph.
Saturday Night
 
 Clear, with a low around 66. South wind 5 to 10 mph.
Sunday
 
 Sunny, with a high near 96. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
 
 Mostly clear, with a low around 59. South wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Monday
 
 Mostly sunny, with a high near 79. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 Mostly clear, with a low around 53.
Tuesday
 
 Sunny, with a high near 83.
Tuesday Night
 
 Mostly clear, with a low around 60.
Wednesday
 
 Sunny, with a high near 90.

 

Forecast from NOAA-NWS for McKinney TX.