Fairmount, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairmount, a community in Hamilton County, Tennessee.
Today
83°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. East wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Fairmount
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 43% |
| Tonight | 66°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 mph | 55% |
| Wednesday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 63% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Thursday | 83°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 50% |
| Friday | 84°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 40% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 0 mph | 40% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 67% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 0 mph | 67% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 51% |
| Monday | 84°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 46% |
| Monday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 46% |
Forecast source: National Weather Service (api.weather.gov) for Fairmount (35.186, -85.330). Updated through the day.
Growing snapshot for Fairmount
Last spring frost
Mar 26
First fall frost
Nov 8
Growing season
228 days
Hardiness zone
7b
More local growing data for Fairmount: nearby ZIP 37377 weather · frost dates · planting calendar · Tennessee frost dates
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Walden
Climate data from the nearest NOAA station, Whitwell-Sequatchie Vly, Tn (8.3 mi from Fairmount). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.