| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/26/2026 3:31pm | ||||||||||||||||||||||||||||||||||||||||
| 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
Air Quality Alert issued August 25 at 2:35PM CDT
| This Afternoon |
A slight chance of showers and thunderstorms. Partly sunny, with a high near 99. Heat index values as high as 106. Northwest wind around 5 mph. Chance of precipitation is 20%. |
| Tonight |
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 79. Heat index values as high as 104. North northeast wind around 5 mph. Chance of precipitation is 20%. |
| Thursday |
A slight chance of rain showers between 1pm and 4pm. 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. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Thursday Night |
A slight chance of rain showers after 10pm. 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. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Friday |
A slight chance of rain showers before 7am. Sunny, with a high near 98. East wind 5 to 10 mph. Chance of precipitation is 20%. |
| 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. |
| 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. |
Forecast from NOAA-NWS for Plano, TX.