Loudon, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Loudon, a city in Loudon County, Tennessee.
This Afternoon
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 75 in the afternoon. South wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Loudon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Sunny | 10 mph S | 1% |
| Tonight | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 21% |
| Wednesday | 71°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 10 mph S | 93% |
| Wednesday Night | 60°F | Showers And Thunderstorms | 0 to 10 mph SW | 81% |
| Thursday | 73°F | Slight Chance Rain Showers | 0 to 5 mph W | 16% |
| Thursday Night | 50°F | Mostly Cloudy | 0 mph | 8% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NW | 6% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph NW | 3% |
| Saturday | 64°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Saturday Night | 38°F | Mostly Cloudy | 0 to 5 mph N | 1% |
| Sunday | 63°F | Partly Sunny | 0 to 5 mph N | 5% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 8% |
| Monday | 63°F | Mostly Sunny | 0 to 5 mph NW | 8% |
| Monday Night | 35°F | Mostly Clear | 0 to 5 mph NW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Loudon (35.737, -84.362). Updated through the day.
Growing snapshot for Loudon
Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7b
More local growing data for Loudon: nearby ZIP 37774 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lenoir City, Tn (6.8 mi from Loudon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.