Southlake, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Southlake, a city in Tarrant County, Texas.
Today
101°F
Sunny
Sunny, with a high near 101. Heat index values as high as 103. South wind 5 to 10 mph.
7-day forecast for Southlake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 80°F | Mostly Clear | 10 mph SSE | 0% |
| Wednesday | 101°F | Sunny | 10 mph S | 0% |
| Wednesday Night | 80°F | Mostly Clear | 10 to 15 mph S | 0% |
| Thursday | 101°F | Sunny | 10 mph S | 0% |
| Thursday Night | 80°F | Mostly Clear | 10 mph SSE | 1% |
| Friday | 99°F | Sunny | 10 mph S | 8% |
| Friday Night | 79°F | Mostly Clear | 10 mph SSE | 8% |
| Saturday | 98°F | Sunny | 5 to 10 mph S | 6% |
| Saturday Night | 79°F | Mostly Clear | 10 mph SSE | 6% |
| Sunday | 98°F | Sunny | 10 mph S | 4% |
| Sunday Night | 79°F | Mostly Clear | 10 to 15 mph SSE | 3% |
| Monday | 99°F | Sunny | 10 to 15 mph S | 4% |
| Monday Night | 79°F | Mostly Clear | 15 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Southlake (32.954, -97.149). Updated through the day.
Growing snapshot for Southlake
Last spring frost
Mar 14
First fall frost
Nov 17
Growing season
249 days
Hardiness zone
8b
More local growing data for Southlake: nearby ZIP 76092 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Grapevine Dam, Tx (5.4 mi from Southlake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.