Cowan, TN Weather & Growing Conditions
Today
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 86. North wind around 0 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Chance Showers And Thunderstorms | 0 mph | 54% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 31% |
| Wednesday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 68% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 mph | 56% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 5 mph SSW | 38% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 38% |
| Friday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 48% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 48% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 67% |
| Saturday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 67% |
| Sunday | 87°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 51% |
| Monday | 88°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 49% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cowan, TN
Last spring frost
Apr 6
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
7b
Explore more for Cowan, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Winchester 5Se, Tn (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.