| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/19/2026 11:31am | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Extreme Heat Warning issued August 19 at 11:26AM CDT until August 20 at 8:00PM CDT
| This Afternoon |
Mostly sunny, with a high near 104. Heat index values as high as 107. South southwest wind around 10 mph. |
| Tonight |
Mostly clear. Low around 82, with temperatures rising to around 84 overnight. Heat index values as high as 105. South southwest wind around 10 mph. |
| Thursday |
Sunny, with a high near 105. Heat index values as high as 107. Southwest wind 5 to 10 mph. |
| Thursday Night |
Mostly clear. Low around 82, with temperatures rising to around 84 overnight. Heat index values as high as 106. South wind around 5 mph. |
| Friday |
Mostly sunny, with a high near 104. South southwest wind around 5 mph. |
| Friday Night |
Mostly clear. Low around 81, with temperatures rising to around 84 overnight. South southeast wind around 5 mph. |
| Saturday |
Sunny, with a high near 104. South southwest wind around 5 mph. |
| Saturday Night |
Mostly clear, with a low around 82. South southeast wind around 5 mph. |
| Sunday |
Sunny, with a high near 105. South southwest wind 5 to 10 mph. |
| Sunday Night |
Mostly clear, with a low around 83. |
| Monday |
Sunny, with a high near 105. |
| Monday Night |
Mostly clear, with a low around 82. |
| Tuesday |
Sunny, with a high near 104. |
| Tuesday Night |
Clear, with a low around 81. |
Forecast from NOAA-NWS for Plano, TX.