| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/29/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 99. South southeast wind 5 to 10 mph. |
| Sunday |
Sunny, with a high near 101. Heat index values as high as 102. South southwest wind 5 to 10 mph. |
| Sunday Night |
Clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 99. South wind around 10 mph. |
| Monday |
Sunny, with a high near 100. Heat index values as high as 104. South wind 5 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 99. South wind 5 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 80. South southeast wind around 10 mph. |
| Wednesday |
Sunny, with a high near 99. South wind 5 to 10 mph. |
| Wednesday Night |
Mostly clear, with a low around 80. South southeast wind around 10 mph. |
| Thursday |
Sunny, with a high near 100. |
| Thursday Night |
Mostly clear, with a low around 80. |
| Friday |
Sunny, with a high near 100. |
| Friday Night |
Mostly clear, with a low around 80. |
| Saturday |
Sunny, with a high near 101. |
Forecast from NOAA-NWS for Plano, TX.