| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/04/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 99. South wind 5 to 10 mph. |
| Saturday |
Sunny, with a high near 99. Heat index values as high as 103. South southeast wind 0 to 5 mph. |
| Saturday Night |
Mostly clear. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 101. South southeast wind 0 to 10 mph. |
| Sunday |
Sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 108. East southeast wind 0 to 10 mph. |
| Sunday Night |
Mostly clear. Low around 80, with temperatures rising to around 82 overnight. South southeast wind 0 to 10 mph. |
| Labor Day |
Sunny. High near 100, with temperatures falling to around 98 in the afternoon. South southeast wind 0 to 10 mph. |
| Monday Night |
Mostly clear, with a low around 80. South southeast wind 5 to 10 mph. |
| Tuesday |
Sunny, with a high near 100. South wind 5 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 80. South wind 5 to 15 mph. |
| Wednesday |
Sunny, with a high near 99. |
| Wednesday Night |
Mostly clear, with a low around 79. |
| Thursday |
Sunny, with a high near 99. |
| Thursday Night |
Mostly clear, with a low around 79. |
| Friday |
Sunny, with a high near 99. |
Forecast from NOAA-NWS for Plano, TX.