National Weather Service Forecast for: McKinney TX
Issued by: National Weather Service Dallas/Fort Worth, TX
Updated: 11:21 pm CST Feb 1, 2026
 
Overnight

Overnight: Clear, with a low around 34. South southwest wind around 5 mph.
Clear

 Monday

Monday: Sunny, with a high near 65. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny

 Monday
Night
Monday Night: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 50. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy
then Slight
Chance
Showers
 Tuesday

Tuesday: A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 62. South southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Slight Chance
Showers then
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 35. North northeast wind around 5 mph.
Mostly Clear

 Wednesday

Wednesday: Partly sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 20 mph.
Partly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 32. North wind 5 to 10 mph becoming light northwest after midnight.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Clear, with a low around 41. Southwest wind around 5 mph.
Clear
Lo 34 °F Hi 65 °F Lo 50 °F Hi 62 °F Lo 35 °F Hi 55 °F Lo 32 °F Hi 62 °F Lo 41 °F

 

Overnight
 
 Clear, with a low around 34. South southwest wind around 5 mph.
Monday
 
 Sunny, with a high near 65. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 50. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
 
 A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 62. South southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
 Mostly clear, with a low around 35. North northeast wind around 5 mph.
Wednesday
 
 Partly sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Mostly clear, with a low around 32. North wind 5 to 10 mph becoming light northwest after midnight.
Thursday
 
 Sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 41. Southwest wind around 5 mph.
Friday
 
 Sunny, with a high near 68.
Friday Night
 
 Mostly clear, with a low around 41.
Saturday
 
 Sunny, with a high near 69.
Saturday Night
 
 Partly cloudy, with a low around 45.
Sunday
 
 Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for McKinney TX.