Johnson City, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnson City, a city in Blanco County, Texas.
Today
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 100. South wind 5 to 10 mph.
7-day forecast for Johnson City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 5 to 10 mph S | 2% |
| Tonight | 74°F | Mostly Clear | 5 to 10 mph S | 2% |
| Wednesday | 96°F | Sunny | 5 to 10 mph S | 1% |
| Wednesday Night | 74°F | Mostly Clear | 5 to 10 mph S | 1% |
| Thursday | 95°F | Sunny | 5 mph S | 2% |
| Thursday Night | 74°F | Mostly Clear | 5 to 10 mph SSE | 2% |
| Friday | 95°F | Sunny | 5 mph S | 4% |
| Friday Night | 74°F | Mostly Clear | 5 mph S | 4% |
| Saturday | 93°F | Sunny | 0 to 5 mph SSE | 4% |
| Saturday Night | 74°F | Mostly Clear | 5 mph SSE | 2% |
| Sunday | 93°F | Sunny | 0 to 5 mph S | 3% |
| Sunday Night | 74°F | Mostly Clear | 5 mph SSE | 3% |
| Monday | 94°F | Sunny | 5 to 10 mph S | 3% |
| Monday Night | 74°F | Mostly Clear | 10 mph S | 3% |
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 Aug 4, 2026.