| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/10/2026 1:26pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
A chance of showers and thunderstorms. Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 106. Southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
| Tonight |
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 103. East southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
| Friday |
A slight chance of rain showers before 10am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 97. Heat index values as high as 105. South wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Friday Night |
A slight chance of showers and thunderstorms before 7pm. Mostly clear. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 103. South southeast wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Sunny, with a high near 100. South wind around 10 mph. |
| Saturday Night |
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph. |
| Sunday |
Sunny, with a high near 99. South wind 5 to 10 mph, with gusts as high as 20 mph. |
| Sunday Night |
Mostly clear, with a low around 78. South southeast wind around 10 mph, with gusts as high as 20 mph. |
| Monday |
Sunny, with a high near 99. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Monday Night |
Mostly clear, with a low around 79. |
| Tuesday |
Sunny, with a high near 99. |
| Tuesday Night |
Mostly clear, with a low around 79. |
| Wednesday |
Sunny, with a high near 98. |
| Wednesday Night |
Mostly clear, with a low around 78. |
Forecast from NOAA-NWS for Plano, TX.