| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/26/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Air Quality Alert issued August 26 at 3:26PM CDT
Heat Advisory issued August 26 at 11:20AM CDT until August 27 at 8:00PM CDT
| Tonight |
A slight chance of showers and thunderstorms before 4am. Mostly clear, with a low around 79. Heat index values as high as 98. North northeast wind around 5 mph. Chance of precipitation is 20%. |
| Thursday |
Mostly sunny. High near 100, with temperatures falling to around 98 in the afternoon. Heat index values as high as 109. Northeast wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
Partly cloudy. Low around 77, with temperatures rising to around 79 overnight. Heat index values as high as 105. East wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
Sunny, with a high near 98. Heat index values as high as 106. East wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
Mostly clear, with a low around 78. Southeast wind 5 to 10 mph. |
| Saturday |
Sunny, with a high near 100. South southeast wind 5 to 10 mph. |
| Saturday Night |
Mostly clear, with a low around 79. South southeast wind around 10 mph. |
| Sunday |
Sunny, with a high near 99. South wind around 10 mph, with gusts as high as 20 mph. |
| Sunday Night |
Clear, with a low around 79. South southeast wind around 10 mph, with gusts as high as 20 mph. |
| Monday |
Sunny, with a high near 99. |
| Monday Night |
Mostly clear, with a low around 79. |
| Tuesday |
Sunny, with a high near 99. |
| Tuesday Night |
Mostly clear, with a low around 80. |
| Wednesday |
Sunny, with a high near 100. |
Forecast from NOAA-NWS for Plano, TX.