Alcoa, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alcoa, a city in Blount County, Tennessee.
Tonight
63°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 63. Northeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Alcoa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 16% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 mph S | 95% |
| Wednesday Night | 62°F | Showers And Thunderstorms | 0 to 5 mph SW | 77% |
| Thursday | 74°F | Slight Chance Rain Showers | 0 to 5 mph W | 22% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph SW | 11% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NW | 11% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph N | 5% |
| Saturday | 64°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Saturday Night | 40°F | Mostly Cloudy | 5 mph NE | 1% |
| Sunday | 63°F | Partly Sunny | 0 to 5 mph N | 6% |
| Sunday Night | 38°F | Partly Cloudy | 5 mph SW | 10% |
| Monday | 63°F | Mostly Sunny | 5 mph NW | 10% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph SW | 7% |
| Tuesday | 66°F | Mostly Sunny | 0 to 5 mph W | 1% |
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 Nov 4, 2026.