National Weather Service Forecast for: McKinney TX
Issued by: National Weather Service Dallas/Fort Worth, TX
Updated: 9:26 am CDT May 4, 2026
 
This
Afternoon
This Afternoon: Cloudy, with a high near 82. South wind around 20 mph, with gusts as high as 30 mph.
Cloudy

 Tonight

Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 71. South wind 15 to 20 mph, with gusts as high as 30 mph.
Decreasing
Clouds
 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 90. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Cloudy
then Chance
T-storms
 Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. West southwest wind 10 to 15 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.
Chance
T-storms
 Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. Northwest wind around 10 mph.
Slight Chance
T-storms
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Cloudy

 Thursday

Thursday: Partly sunny, with a high near 72. North wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 54. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 80. Light southeast wind becoming south 5 to 10 mph in the morning.
Mostly Sunny
Hi 82 °F Lo 71 °F Hi 90 °F Lo 62 °F Hi 79 °F Lo 52 °F Hi 72 °F Lo 54 °F Hi 80 °F

 

This Afternoon
 
 Cloudy, with a high near 82. South wind around 20 mph, with gusts as high as 30 mph.
Tonight
 
 Cloudy, then gradually becoming partly cloudy, with a low around 71. South wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
 
 A 30 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 90. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 62. West southwest wind 10 to 15 mph becoming east northeast after midnight. Winds could gust as high as 20 mph.
Wednesday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 79. Northwest wind around 10 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
 
 Partly sunny, with a high near 72. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
 
 Partly cloudy, with a low around 54. Northeast wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
 Mostly sunny, with a high near 80. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
 
 Partly cloudy, with a low around 61.
Saturday
 
 Mostly sunny, with a high near 84.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 63.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for McKinney TX.