Highland Haven, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highland Haven, a city in Llano County, Texas.
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 100. South southeast wind 0 to 10 mph.
7-day forecast for Highland Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 0 to 10 mph SSE | 1% |
| Tonight | 75°F | Mostly Clear | 5 mph SSE | 1% |
| Wednesday | 98°F | Sunny | 5 to 10 mph S | 1% |
| Wednesday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Thursday | 98°F | Sunny | 5 mph S | 2% |
| Thursday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 2% |
| Friday | 97°F | Sunny | 0 to 5 mph SSE | 3% |
| Friday Night | 75°F | Mostly Clear | 0 to 5 mph SSE | 4% |
| Saturday | 95°F | Sunny | 0 to 5 mph S | 4% |
| Saturday Night | 75°F | Mostly Clear | 0 to 5 mph SSE | 2% |
| Sunday | 95°F | Sunny | 0 to 5 mph SSE | 2% |
| Sunday Night | 75°F | Mostly Clear | 5 mph SSE | 3% |
| Monday | 96°F | Sunny | 0 to 10 mph S | 2% |
| Monday Night | 75°F | Mostly Clear | 5 to 10 mph SSE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Highland Haven (30.607, -98.395). Updated through the day.
Growing snapshot for Highland Haven
Last spring frost
Mar 22
First fall frost
Nov 9
Growing season
235 days
Hardiness zone
8b
More local growing data for Highland Haven: nearby ZIP 78657 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Buchanan Dam
Buchanan Lake Village
Cottonwood Shores
Granite Shoals
Horseshoe Bay
Kingsland
Llano
Sunrise Beach Village
Tow
Climate data from the nearest NOAA station, Johnson City 2N, Tx (16.2 mi from Highland Haven). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.