Johnson City, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnson City, a city in Blanco County, Texas.
Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. South wind 0 to 5 mph.
7-day forecast for Johnson City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Mostly Clear | 0 to 5 mph S | 0% |
| Saturday | 96°F | Sunny | 0 to 5 mph SSE | 0% |
| Saturday Night | 72°F | Mostly Clear | 5 mph S | 0% |
| Sunday | 96°F | Mostly Sunny | 5 mph S | 1% |
| Sunday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSE | 16% |
| Monday | 97°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 19% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 19% |
| Tuesday | 96°F | Sunny | 0 to 5 mph ENE | 13% |
| Tuesday Night | 73°F | Partly Cloudy | 0 to 5 mph ENE | 13% |
| Wednesday | 95°F | Mostly Sunny | 0 to 5 mph ENE | 5% |
| Wednesday Night | 73°F | Partly Cloudy | 0 to 5 mph E | 7% |
| Thursday | 95°F | Mostly Sunny | 0 to 10 mph ENE | 7% |
| Thursday Night | 71°F | Partly Cloudy | 0 to 5 mph E | 6% |
| Friday | 94°F | Mostly Sunny | 0 to 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Johnson City (30.272, -98.407). Updated through the day.
Growing snapshot for Johnson City
Last spring frost
Mar 22
First fall frost
Nov 9
Growing season
235 days
Hardiness zone
8b
More local growing data for Johnson City: nearby ZIP 78636 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Johnson City 2N, Tx (1.5 mi from Johnson City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.