Harman US

Mason, TN Weather & Growing Conditions

Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 101. West wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 99°F Sunny 0 to 5 mph W 2%
Tonight 74°F Mostly Clear 0 mph 1%
Sunday 99°F Sunny 0 to 5 mph WSW 1%
Sunday Night 73°F Partly Cloudy 0 to 5 mph SW 1%
Monday 97°F Mostly Sunny 0 to 10 mph W 13%
Monday Night 68°F Chance Showers And Thunderstorms 0 to 5 mph NNE 36%
Tuesday 89°F Mostly Sunny 5 to 10 mph N 11%
Tuesday Night 61°F Partly Cloudy 5 to 15 mph N 9%
Wednesday 85°F Mostly Sunny 5 to 10 mph NNE 6%
Wednesday Night 59°F Mostly Clear 5 to 10 mph NNE 1%
Thursday 85°F Sunny 5 to 10 mph NNE 1%
Thursday Night 60°F Partly Cloudy 0 to 10 mph NNE 1%
Friday 84°F Mostly Sunny 5 to 10 mph NNE 2%
Friday Night 60°F Partly Cloudy 0 to 10 mph NE 2%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Mason, TN

Last spring frost
Mar 27
First fall frost
Nov 4
Growing season
222 days
Hardiness zone
8a

Explore more for Mason, TN: full frost dates · planting calendar · Tennessee frost dates

Climate data from the nearest NOAA station, Covington 3 Sw, Tn (14.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.