| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/01/2026 9:46pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear. Low around 78, with temperatures rising to around 80 overnight. Southeast wind 5 to 10 mph. |
| Wednesday |
A slight chance of showers and thunderstorms after 1pm. Sunny. High near 96, with temperatures falling to around 92 in the afternoon. Heat index values as high as 104. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. |
| Wednesday Night |
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Heat index values as high as 99. Southeast wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday |
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 94, with temperatures falling to around 90 in the afternoon. Heat index values as high as 98. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a half and three quarters of an inch possible. |
| Thursday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. |
| Friday |
A slight chance of rain showers between 7am and 1pm. Sunny, with a high near 97. South wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph. |
| Saturday |
Sunny, with a high near 98. South wind around 5 mph. |
| Saturday Night |
Mostly clear, with a low around 79. South southeast wind 0 to 10 mph. |
| Sunday |
Sunny, with a high near 99. |
| Sunday Night |
Mostly clear, with a low around 79. |
| Labor Day |
Sunny, with a high near 99. |
| Monday Night |
Mostly clear, with a low around 79. |
| Tuesday |
Sunny, with a high near 99. |
Forecast from NOAA-NWS for Plano, TX.