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.
This Afternoon
71°F
Partly Sunny
Partly sunny, with a high near 71. South wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Flat Top Mountain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Partly Sunny | 15 mph S | 1% |
| Tonight | 63°F | Chance Rain Showers | 10 to 15 mph SE | 49% |
| Wednesday | 66°F | Showers And Thunderstorms | 10 to 15 mph S | 97% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph SW | 66% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph W | 7% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 7% |
| Friday | 68°F | Sunny | 0 to 5 mph NW | 3% |
| Friday Night | 46°F | Mostly Clear | 5 mph NW | 2% |
| Saturday | 60°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 41°F | Partly Cloudy | 5 mph N | 1% |
| Sunday | 60°F | Mostly Sunny | 5 mph N | 7% |
| Sunday Night | 40°F | Mostly Clear | 0 to 5 mph NW | 7% |
| Monday | 60°F | Sunny | 5 mph NW | 6% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph NW | 3% |
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
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Lakesite
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Lookout Mountain
Middle Valley
Mowbray Mountain
Ooltewah
Red Bank
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 Nov 4, 2026.