Mountain City, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountain City, a city in Hays County, Texas.
This Afternoon
98°F
Mostly Sunny
Mostly sunny, with a high near 98. Heat index values as high as 101. Southeast wind around 5 mph.
7-day forecast for Mountain City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Mostly Sunny | 5 mph SE | 0% |
| Tonight | 72°F | Partly Cloudy | 5 to 10 mph SSE | 0% |
| Sunday | 98°F | Mostly Sunny | 5 mph S | 0% |
| Sunday Night | 73°F | Partly Cloudy | 5 mph SSE | 6% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph SSE | 8% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 16% |
| Tuesday | 98°F | Sunny | 0 to 5 mph NNE | 8% |
| Tuesday Night | 74°F | Partly Cloudy | 0 to 5 mph ENE | 8% |
| Wednesday | 98°F | Mostly Sunny | 0 to 10 mph NE | 8% |
| Wednesday Night | 74°F | Partly Cloudy | 0 to 5 mph E | 5% |
| Thursday | 97°F | Mostly Sunny | 0 to 10 mph ENE | 3% |
| Thursday Night | 73°F | Partly Cloudy | 0 to 10 mph SE | 3% |
| Friday | 97°F | Mostly Sunny | 0 to 5 mph NE | 3% |
| Friday Night | 72°F | Partly Cloudy | 0 to 5 mph SSE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Mountain City (30.039, -97.892). Updated through the day.
Growing snapshot for Mountain City
Last spring frost
Mar 10
First fall frost
Nov 17
Growing season
252 days
Hardiness zone
9a
More local growing data for Mountain City: nearby ZIP 78610 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Bear Creek
Belterra
Buda
Driftwood
Dripping Springs
Kyle
Niederwald
San Marcos
Uhland
Wimberley
Woodcreek
Climate data from the nearest NOAA station, Austin 6S, Tx (11.9 mi from Mountain City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.