Harman US

Mossyrock, WA Weather & Growing Conditions

Tonight
51°F
Mostly Cloudy
Mostly cloudy, with a low around 51. East wind around 1 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 51°F Mostly Cloudy 1 mph E 0%
Saturday 69°F Partly Sunny 2 mph NNE 0%
Saturday Night 52°F Partly Cloudy 1 mph NE 0%
Sunday 71°F Mostly Sunny 2 mph NNW 0%
Sunday Night 51°F Mostly Clear 1 mph NNW 0%
Monday 66°F Mostly Sunny 2 mph NW 0%
Monday Night 50°F Partly Cloudy 2 mph NNW 0%
Tuesday 63°F Partly Sunny 0 to 3 mph NW 1%
Tuesday Night 48°F Partly Cloudy 2 mph NNW 1%
Wednesday 63°F Mostly Sunny 2 mph N 1%
Wednesday Night 50°F Partly Cloudy 2 mph NE 3%
Thursday 67°F Partly Sunny 2 mph N 14%
Thursday Night 52°F Chance Light Rain 1 mph NW 26%
Friday 61°F Chance Light Rain 3 mph SW 25%

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

Growing snapshot for Mossyrock, WA

Last spring frost
Apr 7
First fall frost
Nov 13
Growing season
215 days
Hardiness zone
8a

Explore more for Mossyrock, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Mayfield Pwr Plt, Wa (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.