National Weather Service Forecast for: Plano, TX
Issued by: National Weather Service Fort Worth/Dallas, TX
Updated: 07/26/2026 11:31pm
Plano, Collin County, Texas
 
  Monday

Monday: Sunny
Sunny
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Friday

Friday: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Sunny
Sunny
  Hi 102 °F Hi 102 °F Hi 102 °F Hi 102 °F Hi 103 °F Hi 101 °F Hi 98 °F
 
Tonight

Tonight: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
 
Lo 81 °F Lo 82 °F Lo 82 °F Lo 83 °F Lo 83 °F Lo 83 °F Lo 79 °F  

Heat Advisory issued July 26 at 11:31PM CDT until July 27 at 8:00PM CDT
Heat Advisory issued July 26 at 5:54PM CDT until July 27 at 8:00PM CDT
 

Tonight
 
Mostly clear, with a low around 81. South wind around 10 mph.
Monday
 
Sunny, with a high near 102. Heat index values as high as 107. South southwest wind around 10 mph.
Monday Night
 
Mostly clear. Low around 82, with temperatures rising to around 84 overnight. Heat index values as high as 105. South southwest wind around 10 mph.
Tuesday
 
Sunny, with a high near 102. Heat index values as high as 105. South southwest wind 5 to 10 mph.
Tuesday Night
 
Mostly clear. Low around 82, with temperatures rising to around 84 overnight. South wind 5 to 10 mph.
Wednesday
 
Mostly sunny, with a high near 102. South southwest wind 5 to 10 mph.
Wednesday Night
 
Mostly clear, with a low around 83. South southeast wind 5 to 10 mph.
Thursday
 
Mostly sunny, with a high near 102. South southwest wind 5 to 10 mph.
Thursday Night
 
Partly cloudy, with a low around 83. South southeast wind around 10 mph.
Friday
 
Mostly sunny, with a high near 103.
Friday Night
 
Mostly clear, with a low around 83.
Saturday
 
Mostly sunny, with a high near 101.
Saturday Night
 
Mostly clear, with a low around 79.
Sunday
 
Sunny, with a high near 98.

 

Forecast from NOAA-NWS for Plano, TX.