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
99°F
Mostly Sunny
Mostly sunny, with a high near 99. Heat index values as high as 100. South southeast wind around 5 mph.
7-day forecast for Highland Haven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Mostly Sunny | 5 mph SSE | 2% |
| Tonight | 74°F | Mostly Clear | 0 to 5 mph SSE | 1% |
| Sunday | 99°F | Mostly Sunny | 0 to 5 mph SSE | 0% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 18% |
| Monday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph ESE | 20% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 20% |
| Tuesday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph ENE | 21% |
| Tuesday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph ENE | 21% |
| Wednesday | 96°F | Mostly Sunny | 0 to 5 mph ENE | 11% |
| Wednesday Night | 72°F | Partly Cloudy | 0 to 5 mph ESE | 4% |
| Thursday | 96°F | Mostly Sunny | 0 to 5 mph E | 3% |
| Thursday Night | 71°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Friday | 95°F | Mostly Sunny | 0 to 5 mph E | 4% |
| Friday Night | 70°F | Partly Cloudy | 0 to 5 mph E | 4% |
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 Sep 19, 2026.