Loudon, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Loudon, a city in Loudon County, Tennessee.
Tonight
69°F
Partly Cloudy
Partly cloudy, with a low around 69. Northeast wind around 0 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Loudon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Partly Cloudy | 0 mph | 3% |
| Saturday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 25% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 28% |
| Sunday | 92°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 24% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 mph | 29% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 43% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 0 mph | 53% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 0 mph | 74% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 0 mph | 74% |
| Wednesday | 82°F | Rain Showers Likely | 0 mph | 64% |
| Wednesday Night | 62°F | Showers And Thunderstorms Likely | 0 mph | 64% |
| Thursday | 79°F | Chance Rain Showers | 0 to 5 mph N | 28% |
| Thursday Night | 59°F | Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 28% |
| Friday | 78°F | Mostly Sunny | 0 to 5 mph NE | 12% |
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 Sep 19, 2026.