Plano, TX Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 102. South southeast wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 10 mph SSE | 1% |
| Tonight | 82°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Wednesday | 101°F | Sunny | 5 to 10 mph SSW | 2% |
| Wednesday Night | 82°F | Mostly Clear | 10 mph S | 1% |
| Thursday | 100°F | Sunny | 10 mph SSW | 1% |
| Thursday Night | 81°F | Mostly Clear | 10 mph SSE | 1% |
| Friday | 97°F | Sunny | 5 to 10 mph S | 8% |
| Friday Night | 80°F | Mostly Clear | 10 mph SSE | 8% |
| Saturday | 98°F | Sunny | 5 to 10 mph S | 8% |
| Saturday Night | 79°F | Mostly Clear | 10 mph SSE | 8% |
| Sunday | 98°F | Sunny | 5 to 10 mph S | 4% |
| Sunday Night | 80°F | Mostly Clear | 10 mph SSE | 4% |
| Monday | 99°F | Sunny | 10 to 15 mph S | 4% |
| Monday Night | 80°F | Mostly Clear | 10 to 15 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plano, TX
Last spring frost
Mar 7
First fall frost
Nov 21
Growing season
259 days
Hardiness zone
8b
Explore more for Plano, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Richardson, Tx (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.