| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/12/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued September 12 at 11:47AM CDT until September 12 at 8:00PM CDT
| Tonight |
Mostly clear. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 107. South southeast wind 5 to 10 mph. |
| Sunday |
Sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 104. South wind 5 to 10 mph. |
| Sunday Night |
Clear. Low around 81, with temperatures rising to around 83 overnight. Heat index values as high as 102. South southeast wind around 10 mph. |
| Monday |
Sunny, with a high near 100. Heat index values as high as 104. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Monday Night |
Clear. Low around 80, with temperatures rising to around 82 overnight. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Tuesday |
Sunny, with a high near 99. South wind around 10 mph, with gusts as high as 20 mph. |
| Tuesday Night |
Mostly clear, with a low around 79. South southeast wind 5 to 15 mph. |
| Wednesday |
Sunny, with a high near 99. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. |
| Wednesday Night |
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. |
| Thursday |
Sunny, with a high near 98. |
| Thursday Night |
Mostly clear, with a low around 77. |
| Friday |
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%. |
| Friday Night |
A slight chance of rain showers before 7pm. Mostly clear, with a low around 75. Chance of precipitation is 20%. |
| Saturday |
A slight chance of rain showers after 7am. Sunny, with a high near 93. Chance of precipitation is 20%. |
Forecast from NOAA-NWS for Plano, TX.