Dayton, TN Weather & Growing Conditions
Today
70°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 70. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Showers And Thunderstorms | 10 to 15 mph S | 92% |
| Tonight | 58°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph W | 90% |
| Thursday | 74°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 2% |
| Friday | 71°F | Sunny | 0 to 5 mph NW | 2% |
| Friday Night | 45°F | Mostly Clear | 5 mph NW | 1% |
| Saturday | 62°F | Sunny | 5 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 5 mph N | 0% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph N | 1% |
| Monday | 63°F | Sunny | 0 mph | 1% |
| Monday Night | 38°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 mph | 2% |
| Tuesday Night | 40°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, TN
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
200 days
Hardiness zone
7b
Explore more for Dayton, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Spring City, Tn (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.