Harman US

Flat Top Mountain, TN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Flat Top Mountain, a community in Hamilton County, Tennessee.

Overnight
71°F
Mostly Clear
Mostly clear, with a low around 71. North wind around 0 mph.

7-day forecast for Flat Top Mountain

WhenTempForecastWindPrecip
Overnight 71°F Mostly Clear 0 mph 3%
Saturday 92°F Sunny then Chance Showers And Thunderstorms 0 to 5 mph NE 41%
Saturday Night 69°F Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph SW 37%
Sunday 90°F Sunny then Chance Showers And Thunderstorms 0 to 5 mph S 46%
Sunday Night 68°F Chance Showers And Thunderstorms then Partly Cloudy 0 mph 46%
Monday 90°F Mostly Sunny then Showers And Thunderstorms Likely 0 mph 57%
Monday Night 68°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 0 mph 57%
Tuesday 86°F Showers And Thunderstorms 0 mph 76%
Tuesday Night 65°F Showers And Thunderstorms 0 mph 76%
Wednesday 80°F Showers And Thunderstorms Likely 0 to 5 mph W 57%
Wednesday Night 62°F Showers And Thunderstorms Likely 0 to 5 mph N 57%
Thursday 78°F Mostly Sunny then Slight Chance Rain Showers 0 to 5 mph N 18%
Thursday Night 59°F Slight Chance Rain Showers then Partly Cloudy 5 mph N 18%
Friday 77°F Mostly Sunny 5 mph N 14%

Forecast source: National Weather Service (api.weather.gov) for Flat Top Mountain (35.332, -85.200). Updated through the day.

Growing snapshot for Flat Top Mountain

Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7b

More local growing data for Flat Top Mountain: nearby ZIP 37379 weather · frost dates · planting calendar · Tennessee frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Soddy Daisy-Mowbray Mtn, Tn (2.6 mi from Flat Top Mountain). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.