Coalfield, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coalfield, a community in Morgan County, Tennessee.
This Afternoon
93°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny. High near 93, with temperatures falling to around 88 in the afternoon. Heat index values as high as 98. Wind around 0 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Coalfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Chance Showers And Thunderstorms | 0 mph | 37% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 33% |
| Sunday | 92°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 15% |
| Sunday Night | 69°F | Partly Cloudy | 0 mph | 14% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 49% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 0 mph | 54% |
| Tuesday | 86°F | Showers And Thunderstorms | 0 mph | 79% |
| Tuesday Night | 65°F | Showers And Thunderstorms | 0 mph | 79% |
| Wednesday | 80°F | Showers And Thunderstorms | 0 mph | 82% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 mph | 82% |
| Thursday | 78°F | Chance Rain Showers | 0 mph | 46% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 37% |
| Friday | 78°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 16% |
| Friday Night | 56°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov) for Coalfield (36.023, -84.442). Updated through the day.
Growing snapshot for Coalfield
Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7b
More local growing data for Coalfield: nearby ZIP 37719 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oak Ridge Atdd, Tn (10.1 mi from Coalfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.