Jonesborough, TN Weather & Growing Conditions
Tonight
67°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Southeast wind around 0 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Scattered Showers And Thunderstorms | 0 mph | 45% |
| Saturday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 19% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 29% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 56% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 56% |
| Monday | 86°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 55% |
| Monday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph SE | 55% |
| Tuesday | 81°F | Showers And Thunderstorms | 0 to 5 mph S | 82% |
| Tuesday Night | 63°F | Showers And Thunderstorms | 5 mph SE | 82% |
| Wednesday | 76°F | Rain Showers Likely | 5 mph SE | 61% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 61% |
| Thursday | 73°F | Chance Rain Showers | 0 to 5 mph N | 34% |
| Thursday Night | 57°F | Chance Rain Showers then Partly Cloudy | 0 to 5 mph NE | 28% |
| Friday | 74°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jonesborough, TN
Last spring frost
Apr 21
First fall frost
Oct 23
Growing season
183 days
Hardiness zone
7a
Explore more for Jonesborough, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Erwin 1 W, Tn (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.