Valley Forge, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Valley Forge, a community in Carter County, Tennessee.
Today
88°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between noon and 2pm, then showers and thunderstorms likely between 2pm and 5pm, then showers and thunderstorms likely. Mostly sunny. High near 88, with temperatures falling to around 81 in the afternoon. East wind around 0 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Valley Forge
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 63% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 51% |
| Wednesday | 87°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 66% |
| Wednesday Night | 67°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph SE | 56% |
| Thursday | 87°F | Showers And Thunderstorms | 0 to 5 mph SW | 75% |
| Thursday Night | 67°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph S | 75% |
| Friday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 68% |
| Friday Night | 67°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 68% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 78% |
| Saturday Night | 68°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 mph | 78% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 48% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 48% |
| Monday | 89°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SW | 45% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 45% |
Forecast source: National Weather Service (api.weather.gov) for Valley Forge (36.304, -82.195). Updated through the day.
Growing snapshot for Valley Forge
Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
7a
More local growing data for Valley Forge: nearby ZIP 37658 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Roan Mtn 3Sw, Tn (7.4 mi from Valley Forge). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.