Buchanan Dam, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Buchanan Dam, a community in Llano County, Texas.
Tonight
73°F
Mostly Clear
Mostly clear, with a low around 73. South southeast wind around 5 mph.
7-day forecast for Buchanan Dam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 mph SSE | 1% |
| Saturday | 95°F | Sunny | 5 mph SSE | 1% |
| Saturday Night | 72°F | Mostly Clear | 5 mph SSE | 1% |
| Sunday | 97°F | Mostly Sunny | 5 mph S | 1% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 28% |
| Monday | 96°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 28% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph ESE | 21% |
| Tuesday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 18% |
| Tuesday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 18% |
| Wednesday | 95°F | Mostly Sunny | 0 to 5 mph ENE | 7% |
| Wednesday Night | 73°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Thursday | 94°F | Mostly Sunny | 0 to 5 mph E | 7% |
| Thursday Night | 72°F | Partly Cloudy | 0 to 5 mph E | 7% |
| Friday | 94°F | Mostly Sunny | 0 to 5 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for Buchanan Dam (30.816, -98.453). Updated through the day.
Growing snapshot for Buchanan Dam
Last spring frost
Mar 20
First fall frost
Nov 10
Growing season
235 days
Hardiness zone
8b
More local growing data for Buchanan Dam: nearby ZIP 78607 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Buchanan Lake Village
Cottonwood Shores
Granite Shoals
Highland Haven
Horseshoe Bay
Kingsland
Llano
Sunrise Beach Village
Tow
Climate data from the nearest NOAA station, Llano, Tx (11.2 mi from Buchanan Dam). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.