| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 07/20/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued July 20 at 11:09AM CDT until July 21 at 8:00PM CDT
| Tonight |
Clear. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 104. South wind around 5 mph. |
| Tuesday |
Sunny, with a high near 103. Heat index values as high as 108. West wind 0 to 5 mph. |
| Tuesday Night |
Clear, with a low around 84. Heat index values as high as 106. South southeast wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 103. Heat index values as high as 111. North northeast wind 5 to 10 mph. |
| Wednesday Night |
Mostly clear. Low around 82, with temperatures rising to around 84 overnight. East wind 5 to 10 mph. |
| Thursday |
Sunny, with a high near 100. East southeast wind around 10 mph. |
| Thursday Night |
Clear, with a low around 81. East southeast wind around 10 mph. |
| Friday |
Sunny, with a high near 101. South southeast wind around 10 mph. |
| Friday Night |
Mostly clear, with a low around 83. South southeast wind 10 to 15 mph. |
| Saturday |
Mostly sunny, with a high near 100. |
| Saturday Night |
Mostly clear, with a low around 83. |
| Sunday |
Sunny, with a high near 101. |
| Sunday Night |
Clear, with a low around 83. |
| Monday |
Sunny, with a high near 102. |
Forecast from NOAA-NWS for Plano, TX.