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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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Apison
Chattanooga
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Lookout Mountain
Middle Valley
Mowbray Mountain
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Ridgeside
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Soddy-Daisy
Walden
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.