Alcoa, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alcoa, a city in Blount County, Tennessee.
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Northeast wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Alcoa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 0 to 5 mph NE | 9% |
| Saturday | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 24% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 26% |
| Sunday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 30% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 30% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 42% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 52% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 72% |
| Tuesday Night | 67°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 72% |
| Wednesday | 83°F | Rain Showers Likely | 0 to 5 mph NW | 68% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 68% |
| Thursday | 79°F | Chance Rain Showers | 0 to 5 mph N | 33% |
| Thursday Night | 61°F | Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 33% |
| Friday | 79°F | Mostly Sunny | 0 to 10 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Alcoa (35.807, -83.973). Updated through the day.
Growing snapshot for Alcoa
Last spring frost
Apr 1
First fall frost
Nov 2
Growing season
215 days
Hardiness zone
7b
More local growing data for Alcoa: nearby ZIP 37701 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Knoxville Mcghee Tyson Ap, Tn (1.8 mi from Alcoa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.