| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/08/2026 1:26am | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Partly cloudy, with a low around 79. South wind around 10 mph. |
| Saturday |
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 100. Heat index values as high as 103. South southwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 101. South wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Sunday |
Sunny, with a high near 98. Heat index values as high as 100. South southwest wind 5 to 10 mph. |
| Sunday Night |
Clear, with a low around 79. South wind around 10 mph. |
| Monday |
Sunny, with a high near 99. South wind around 10 mph, with gusts as high as 20 mph. |
| Monday Night |
Clear, with a low around 79. South wind 10 to 15 mph. |
| Tuesday |
Sunny, with a high near 98. South wind 10 to 15 mph. |
| Tuesday Night |
Clear, with a low around 80. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Wednesday |
Sunny, with a high near 100. |
| Wednesday Night |
Clear, with a low around 80. |
| Thursday |
Sunny, with a high near 101. |
| Thursday Night |
Clear, with a low around 78. |
| Friday |
Sunny, with a high near 100. |
Forecast from NOAA-NWS for Plano, TX.