Johnson City, TN Weather & Growing Conditions
Tonight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. West wind around 0 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Partly Cloudy | 0 mph | 6% |
| Saturday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 19% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 31% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 59% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 59% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 0 mph | 59% |
| Monday Night | 66°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 59% |
| Tuesday | 82°F | Showers And Thunderstorms | 0 to 5 mph S | 82% |
| Tuesday Night | 63°F | Showers And Thunderstorms | 5 mph SE | 82% |
| Wednesday | 77°F | Rain Showers Likely | 5 mph SE | 59% |
| Wednesday Night | 60°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 59% |
| Thursday | 75°F | Chance Rain Showers | 5 mph N | 32% |
| Thursday Night | 57°F | Chance Rain Showers | 0 to 5 mph E | 31% |
| Friday | 76°F | Partly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 23% |
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 (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.