| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/07/2026 6:06am | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued September 7 at 4:29AM CDT until September 7 at 8:00PM CDT
| Labor Day |
Sunny, with a high near 100. Heat index values as high as 104. South wind 0 to 10 mph, with gusts as high as 20 mph. |
| Tonight |
Clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 105. South southeast wind 5 to 10 mph. |
| Tuesday |
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 100. Heat index values as high as 106. South southeast wind 5 to 10 mph. Chance of precipitation is 20%. |
| Tuesday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 103. South southeast wind 5 to 10 mph. Chance of precipitation is 20%. |
| Wednesday |
Sunny. High near 100, with temperatures falling to around 98 in the afternoon. South wind 5 to 10 mph. |
| Wednesday Night |
Mostly clear. Low around 79, with temperatures rising to around 81 overnight. South wind 5 to 10 mph. |
| Thursday |
Sunny, with a high near 98. South southwest wind around 5 mph. |
| Thursday Night |
Partly cloudy, with a low around 79. Southeast wind around 5 mph. |
| Friday |
Sunny, with a high near 98. South wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 78. |
| Saturday |
Sunny, with a high near 99. |
| Saturday Night |
Mostly clear, with a low around 78. |
| Sunday |
Sunny, with a high near 98. |
| Sunday Night |
Mostly clear, with a low around 77. |
Forecast from NOAA-NWS for Plano, TX.