Fall Branch, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fall Branch, a community in Washington County, Tennessee.
Today
85°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 85, with temperatures falling to around 80 in the afternoon. Southeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fall Branch
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 49% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph SE | 56% |
| Wednesday | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 51% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 53% |
| Thursday | 84°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph S | 50% |
| Friday | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 45% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 45% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 58% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 58% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 35% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 35% |
| Monday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 32% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 32% |
Forecast source: National Weather Service (api.weather.gov) for Fall Branch (36.416, -82.624). Updated through the day.
Growing snapshot for Fall Branch
Last spring frost
Apr 9
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7a
More local growing data for Fall Branch: nearby ZIP 37656 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kingsport, Tn (10.1 mi from Fall Branch). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.