Watertown, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Watertown, a city in Wilson County, Tennessee.
Today
88°F
Sunny
Sunny, with a high near 88. North northeast wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Watertown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 5 mph NNE | 12% |
| Tonight | 69°F | Mostly Clear then Patchy Fog | 0 to 5 mph NNE | 13% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph WSW | 45% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 28% |
| Thursday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SSW | 26% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 26% |
| Friday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph SSW | 36% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 5 mph S | 36% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 5 mph SSW | 56% |
| Saturday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 56% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 35% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 35% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 24% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 24% |
Forecast source: National Weather Service (api.weather.gov) for Watertown (36.101, -86.139). Updated through the day.
Growing snapshot for Watertown
Last spring frost
Apr 6
First fall frost
Oct 28
Growing season
206 days
Hardiness zone
7b
More local growing data for Watertown: nearby ZIP 37184 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lebanon, Tn (13.8 mi from Watertown). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.