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
90°F
Areas Of Fog then Chance Showers And Thunderstorms
Areas of fog before 9am, then a chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. North wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Valley Forge
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Areas Of Fog then Chance Showers And Thunderstorms | 0 to 5 mph N | 25% |
| Tonight | 67°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 25% |
| Sunday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 34% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 0 mph | 46% |
| Monday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 57% |
| Monday Night | 65°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 57% |
| Tuesday | 82°F | Showers And Thunderstorms | 0 to 5 mph SE | 84% |
| Tuesday Night | 62°F | Showers And Thunderstorms | 5 to 10 mph SE | 84% |
| Wednesday | 74°F | Showers And Thunderstorms Likely | 5 mph SE | 59% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 59% |
| Thursday | 76°F | Chance Rain Showers | 0 to 5 mph S | 44% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 44% |
| Friday | 75°F | Slight Chance Rain Showers | 0 to 5 mph NE | 24% |
| Friday Night | 54°F | Slight Chance Rain Showers | 0 to 5 mph NE | 24% |
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 Sep 19, 2026.