Johnson City, TN Weather & Growing Conditions
Overnight
57°F
Mostly Cloudy
Mostly cloudy, with a low around 57. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Mostly Cloudy | 5 mph SE | 3% |
| Wednesday | 71°F | Rain Showers Likely | 5 to 15 mph SE | 67% |
| Wednesday Night | 59°F | Showers And Thunderstorms | 0 to 5 mph E | 92% |
| Thursday | 73°F | Chance Rain Showers | 0 to 5 mph W | 30% |
| Thursday Night | 52°F | Mostly Cloudy then Slight Chance Rain Showers | 0 mph | 17% |
| Friday | 68°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph NW | 17% |
| Friday Night | 42°F | Partly Cloudy | 0 to 5 mph NW | 5% |
| Saturday | 59°F | Mostly Sunny | 0 to 5 mph NW | 5% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph NW | 3% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Sunday Night | 31°F | Mostly Clear | 0 to 5 mph W | 2% |
| Monday | 61°F | Sunny | 0 to 5 mph W | 4% |
| Monday Night | 32°F | Mostly Clear | 0 mph | 4% |
| Tuesday | 65°F | Sunny | 0 to 5 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johnson City, TN
Last spring frost
Apr 19
First fall frost
Oct 24
Growing season
187 days
Hardiness zone
7b
Explore more for Johnson City, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Elizabethton, Tn (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.