| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/08/2026 6:06am | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Heat Advisory issued September 8 at 12:01AM CDT until September 8 at 8:00PM CDT
| Today |
Sunny, with a high near 101. Heat index values as high as 106. South southeast wind 5 to 10 mph. |
| Tonight |
Mostly clear. Low around 80, with temperatures rising to around 82 overnight. Heat index values as high as 104. South southeast wind 5 to 10 mph. |
| Wednesday |
Sunny, with a high near 100. Heat index values as high as 103. South wind 5 to 10 mph. |
| Wednesday Night |
Mostly clear. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 101. South southeast wind 5 to 10 mph. |
| Thursday |
Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. South wind around 5 mph. |
| Thursday Night |
Partly cloudy. Low around 78, with temperatures rising to around 80 overnight. Southeast wind around 5 mph. |
| Friday |
Mostly sunny, with a high near 98. South wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 79. South southeast wind around 10 mph. |
| Saturday |
Sunny, with a high near 99. South wind 10 to 15 mph. |
| Saturday Night |
Mostly clear, with a low around 78. |
| Sunday |
Sunny, with a high near 98. |
| Sunday Night |
A slight chance of rain showers between 7pm and 1am. Mostly clear, with a low around 77. Chance of precipitation is 20%. |
| Monday |
Sunny, with a high near 96. |
| Monday Night |
Mostly clear, with a low around 75. |
Forecast from NOAA-NWS for Plano, TX.