Watertown, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Watertown, a city in Wilson County, Tennessee.
This Afternoon
78°F
Partly Sunny
Partly sunny. High near 78, with temperatures falling to around 72 in the afternoon. South southeast wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Watertown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Partly Sunny | 15 mph SSE | 1% |
| Tonight | 62°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 15 mph SSE | 86% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph SSW | 97% |
| Wednesday Night | 48°F | Areas Of Fog | 0 to 5 mph WSW | 4% |
| Thursday | 72°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 43°F | Areas Of Fog | 0 mph | 0% |
| Friday | 69°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph NNW | 1% |
| Friday Night | 38°F | Partly Cloudy | 5 mph NNW | 1% |
| Saturday | 61°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 32°F | Mostly Cloudy | 0 to 5 mph NNW | 1% |
| Sunday | 62°F | Mostly Sunny | 0 to 10 mph NW | 7% |
| Sunday Night | 30°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 63°F | Sunny | 0 to 5 mph W | 5% |
| Monday Night | 31°F | Mostly Clear | 0 mph | 1% |
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 Nov 4, 2026.