Southlake, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Southlake, a city in Tarrant County, Texas.
Overnight
77°F
Mostly Clear
Mostly clear. Low around 77, with temperatures rising to around 79 overnight. South wind 5 to 10 mph.
7-day forecast for Southlake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 77°F | Mostly Clear | 5 to 10 mph S | 0% |
| Saturday | 99°F | Sunny | 5 to 10 mph S | 0% |
| Saturday Night | 78°F | Mostly Clear | 10 mph S | 0% |
| Sunday | 99°F | Mostly Sunny then Chance Showers And Thunderstorms | 10 mph S | 25% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 40% |
| Monday | 95°F | Chance Showers And Thunderstorms | 5 mph W | 40% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph NE | 19% |
| Tuesday | 91°F | Mostly Sunny | 10 to 15 mph NNE | 11% |
| Tuesday Night | 70°F | Partly Cloudy | 10 mph NE | 8% |
| Wednesday | 91°F | Mostly Sunny | 10 mph NE | 8% |
| Wednesday Night | 72°F | Partly Cloudy | 5 to 10 mph E | 2% |
| Thursday | 91°F | Mostly Sunny | 5 to 10 mph E | 4% |
| Thursday Night | 72°F | Partly Cloudy | 5 to 10 mph E | 3% |
| Friday | 92°F | Mostly Sunny | 5 to 10 mph ESE | 2% |
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 Sep 19, 2026.