Calhoun, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calhoun, a town in Mcminn County, Tennessee.
Today
88°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 88. North wind around 0 mph. Chance of precipitation is 40%.
7-day forecast for Calhoun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Chance Showers And Thunderstorms | 0 mph | 41% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 36% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 50% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 34% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 34% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 38% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 38% |
Forecast source: National Weather Service (api.weather.gov) for Calhoun (35.302, -84.741). Updated through the day.
Growing snapshot for Calhoun
Last spring frost
Apr 6
First fall frost
Oct 30
Growing season
206 days
Hardiness zone
7b
More local growing data for Calhoun: nearby ZIP 37309 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cleveland Fltr Plt, Tn (6.4 mi from Calhoun). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.