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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

WhenTempForecastWindPrecip
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

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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.