National Weather Service Forecast for: McKinney TX
Issued by: National Weather Service Dallas/Fort Worth, TX
Updated: 11:21 pm CST Dec 4, 2025
 
Overnight

Overnight: Mostly cloudy, with a steady temperature around 36. Calm wind.
Mostly Cloudy

 Friday

Friday: Partly sunny, with a high near 52. Light south southwest wind becoming south 5 to 10 mph in the morning.
Partly Sunny

 Friday
Night
Friday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 38. South southeast wind around 5 mph.
Mostly Cloudy
then Patchy
Fog
 Saturday

Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 58. South wind around 5 mph.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 41. South southeast wind around 5 mph becoming north northeast after midnight.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 56. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunny

 Sunday
Night
Sunday Night: Clear, with a low around 28. North wind 5 to 10 mph.
Clear

 Monday

Monday: Sunny, with a high near 51. Calm wind becoming east southeast around 5 mph.
Sunny

 Monday
Night
Monday Night: Mostly clear, with a low around 34. Calm wind becoming south around 5 mph.
Mostly Clear
Lo 36 °F Hi 52 °F Lo 38 °F Hi 58 °F Lo 41 °F Hi 56 °F Lo 28 °F Hi 51 °F Lo 34 °F

 

Overnight
 
 Mostly cloudy, with a steady temperature around 36. Calm wind.
Friday
 
 Partly sunny, with a high near 52. Light south southwest wind becoming south 5 to 10 mph in the morning.
Friday Night
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 38. South southeast wind around 5 mph.
Saturday
 
 Patchy fog before 9am. Otherwise, mostly sunny, with a high near 58. South wind around 5 mph.
Saturday Night
 
 Mostly clear, with a low around 41. South southeast wind around 5 mph becoming north northeast after midnight.
Sunday
 
 Sunny, with a high near 56. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
 
 Clear, with a low around 28. North wind 5 to 10 mph.
Monday
 
 Sunny, with a high near 51. Calm wind becoming east southeast around 5 mph.
Monday Night
 
 Mostly clear, with a low around 34. Calm wind becoming south around 5 mph.
Tuesday
 
 Sunny, with a high near 60.
Tuesday Night
 
 Mostly clear, with a low around 45.
Wednesday
 
 Sunny, with a high near 65.
Wednesday Night
 
 Mostly clear, with a low around 37.
Thursday
 
 Sunny, with a high near 61.

 

Forecast from NOAA-NWS for McKinney TX.