National Weather Service Forecast for: McKinney TX
Issued by: National Weather Service Dallas/Fort Worth, TX
Updated: 11:21 pm CST Dec 22, 2025
 
Overnight

Overnight: Increasing clouds, with a low around 62. South wind 5 to 10 mph.
Increasing
Clouds
 Tuesday

Tuesday: Mostly cloudy, with a high near 79. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Cloudy
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 64. South wind 5 to 10 mph.
Partly Cloudy
 Wednesday

Wednesday: Partly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Partly Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 61. South wind 5 to 10 mph.
Partly Cloudy
 Christmas
Day
Christmas Day: Sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 62. South wind around 10 mph, with gusts as high as 20 mph.
Partly Cloudy
 Friday

Friday: Sunny, with a high near 82. Southwest wind around 10 mph.
Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 62. South southwest wind 5 to 10 mph.
Partly Cloudy
Lo 62 °F Hi 79 °F Lo 64 °F Hi 78 °F Lo 61 °F Hi 78 °F Lo 62 °F Hi 82 °F Lo 62 °F

 

Overnight
 
 Increasing clouds, with a low around 62. South wind 5 to 10 mph.
Tuesday
 
 Mostly cloudy, with a high near 79. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
 
 Partly cloudy, with a low around 64. South wind 5 to 10 mph.
Wednesday
 
 Partly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Partly cloudy, with a low around 61. South wind 5 to 10 mph.
Christmas Day
 
 Sunny, with a high near 78. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
 
 Partly cloudy, with a low around 62. South wind around 10 mph, with gusts as high as 20 mph.
Friday
 
 Sunny, with a high near 82. Southwest wind around 10 mph.
Friday Night
 
 Partly cloudy, with a low around 62. South southwest wind 5 to 10 mph.
Saturday
 
 Mostly sunny, with a high near 81.
Saturday Night
 
 Mostly cloudy, with a low around 51.
Sunday
 
 Mostly cloudy, with a high near 60.
Sunday Night
 
 Mostly cloudy, with a low around 36.
Monday
 
 Mostly sunny, with a high near 49.

 

Forecast from NOAA-NWS for McKinney TX.