Buchanan Dam, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Buchanan Dam, a community in Llano County, Texas.
Today
71°F
Sunny
Sunny, with a high near 71. Northwest wind around 0 mph.
7-day forecast for Buchanan Dam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 0 mph | 0% |
| Tonight | 53°F | Clear | 0 to 5 mph SE | 0% |
| Thursday | 78°F | Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 15 mph NNW | 0% |
| Friday | 69°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 50°F | Partly Cloudy | 5 mph NNE | 0% |
| Saturday | 65°F | Partly Sunny | 5 mph NNE | 11% |
| Saturday Night | 48°F | Slight Chance Rain Showers | 0 to 5 mph N | 23% |
| Sunday | 65°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 15% |
| Sunday Night | 46°F | Mostly Clear | 0 mph | 5% |
| Monday | 67°F | Sunny | 0 mph | 3% |
| Monday Night | 47°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 70°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Tuesday Night | 50°F | Partly Cloudy | 0 mph | 3% |
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 Nov 4, 2026.