| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 09/18/2026 6:51pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Clear. Low around 77, with temperatures rising to around 79 overnight. South wind 5 to 10 mph. |
| Saturday |
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 101. South wind 5 to 10 mph. |
| Saturday Night |
Mostly clear. Low around 77, with temperatures rising to around 79 overnight. Heat index values as high as 98. South wind around 10 mph. |
| Sunday |
Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 102. South wind 5 to 10 mph. |
| Sunday Night |
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 76. South wind around 5 mph. Chance of precipitation is 50%. |
| Monday |
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 94, with temperatures falling to around 92 in the afternoon. Southwest wind around 5 mph. Chance of precipitation is 50%. |
| Monday Night |
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. East northeast wind around 5 mph. Chance of precipitation is 20%. |
| Tuesday |
Mostly sunny, with a high near 93. North northeast wind around 10 mph. |
| Tuesday Night |
Partly cloudy, with a low around 72. Northeast wind around 10 mph. |
| Wednesday |
Mostly sunny, with a high near 93. |
| Wednesday Night |
Partly cloudy, with a low around 72. |
| Thursday |
Mostly sunny, with a high near 93. |
| Thursday Night |
Partly cloudy, with a low around 72. |
| Friday |
Mostly sunny, with a high near 92. |
Forecast from NOAA-NWS for Plano, TX.