Johnson City, TN Weather & Growing Conditions
This Afternoon
76°F
Sunny
Sunny. High near 76, with temperatures falling to around 72 in the afternoon. Southeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Sunny | 10 mph SE | 1% |
| Tonight | 59°F | Partly Cloudy | 5 to 10 mph E | 3% |
| Wednesday | 71°F | Showers And Thunderstorms | 10 to 15 mph SE | 78% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 10 mph S | 92% |
| Thursday | 73°F | Chance Rain Showers | 0 to 5 mph SW | 33% |
| Thursday Night | 55°F | Chance Rain Showers | 0 mph | 32% |
| Friday | 69°F | Chance Rain Showers | 0 to 5 mph NW | 29% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph NW | 11% |
| Saturday | 62°F | Mostly Sunny | 0 to 5 mph NW | 12% |
| Saturday Night | 39°F | Partly Cloudy | 0 mph | 5% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph W | 5% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph W | 14% |
| Monday | 60°F | Slight Chance Rain Showers | 0 to 10 mph W | 17% |
| Monday Night | 37°F | Slight Chance Rain Showers then Mostly Clear | 0 to 5 mph W | 17% |
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 Nov 4, 2026.