| National Weather Service Forecast for:
Plano, TX Issued by: National Weather Service Fort Worth/Dallas, TX |
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| Updated: 08/24/2026 6:06pm | ||||||||||||||||||||||||||||||||||||||||
| Plano, Collin County, Texas | ||||||||||||||||||||||||||||||||||||||||
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Extreme Heat Warning issued August 24 at 1:30PM CDT until August 25 at 9:00PM CDT
| Tonight |
Mostly clear. Low around 84, with temperatures rising to around 86 overnight. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph. |
| Tuesday |
Mostly sunny, with a high near 105. Heat index values as high as 105. South southwest wind around 10 mph, with gusts as high as 20 mph. |
| Tuesday Night |
Partly cloudy. Low around 83, with temperatures rising to around 85 overnight. Heat index values as high as 102. South southwest wind around 10 mph. |
| Wednesday |
Mostly sunny. High near 102, with temperatures falling to around 100 in the afternoon. Heat index values as high as 105. West southwest wind 5 to 10 mph. |
| Wednesday Night |
Partly cloudy. Low around 80, with temperatures rising to around 82 overnight. North wind around 5 mph. |
| Thursday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny. High near 100, with temperatures falling to around 98 in the afternoon. North northeast wind 5 to 10 mph. Chance of precipitation is 20%. |
| Thursday Night |
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. East northeast wind 5 to 10 mph. Chance of precipitation is 20%. |
| Friday |
Mostly sunny, with a high near 99. East northeast wind 5 to 10 mph. |
| Friday Night |
Mostly clear, with a low around 79. East southeast wind 5 to 10 mph. |
| Saturday |
Sunny, with a high near 100. |
| Saturday Night |
Mostly clear, with a low around 79. |
| Sunday |
Sunny, with a high near 100. |
| Sunday Night |
Clear, with a low around 80. |
| Monday |
Sunny, with a high near 100. |
Forecast from NOAA-NWS for Plano, TX.