Johnson City, TN Weather & Growing Conditions
Tonight
57°F
Partly Cloudy
Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Partly Cloudy | 5 to 10 mph SE | 3% |
| Wednesday | 72°F | Showers And Thunderstorms | 5 to 10 mph SE | 82% |
| Wednesday Night | 60°F | Showers And Thunderstorms | 0 to 5 mph S | 92% |
| Thursday | 73°F | Chance Rain Showers | 0 to 5 mph SW | 39% |
| Thursday Night | 52°F | Chance Rain Showers | 0 mph | 27% |
| Friday | 69°F | Chance Rain Showers then Mostly Sunny | 0 to 5 mph NW | 27% |
| Friday Night | 45°F | Partly Cloudy | 0 to 5 mph NW | 10% |
| Saturday | 62°F | Partly Sunny | 0 to 5 mph NW | 8% |
| Saturday Night | 36°F | Partly Cloudy | 0 mph | 3% |
| Sunday | 61°F | Partly Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph SW | 13% |
| Monday | 61°F | Slight Chance Rain Showers | 0 to 10 mph W | 15% |
| Monday Night | 32°F | Mostly Clear | 0 to 5 mph W | 14% |
| Tuesday | 64°F | Mostly Sunny | 0 to 10 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johnson City, TN
Last spring frost
Apr 16
First fall frost
Oct 24
Growing season
190 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, Bristol Tri City Ap, Tn (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.