Johnson City, TN Weather & Growing Conditions
Today
71°F
Showers And Thunderstorms Likely
A chance of rain showers between 10am and 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 71. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Showers And Thunderstorms Likely | 5 to 15 mph SE | 69% |
| Tonight | 59°F | Showers And Thunderstorms | 0 to 5 mph SW | 92% |
| Thursday | 73°F | Chance Rain Showers | 0 to 5 mph W | 28% |
| Thursday Night | 52°F | Mostly Cloudy | 0 mph | 14% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NW | 14% |
| Friday Night | 43°F | Partly Cloudy | 0 to 5 mph NW | 3% |
| Saturday | 59°F | Mostly Sunny | 0 to 5 mph NW | 3% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Sunday Night | 30°F | Mostly Clear | 0 to 5 mph NW | 2% |
| Monday | 61°F | Sunny | 0 to 5 mph W | 3% |
| Monday Night | 31°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 65°F | Sunny | 0 to 5 mph W | 2% |
| Tuesday Night | 33°F | Mostly Clear | 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 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 (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.