Harman US

Cougar, WA Weather & Growing Conditions

Tonight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. Northeast wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 51°F Partly Cloudy 2 mph NE 0%
Saturday 72°F Mostly Sunny 3 mph WSW 0%
Saturday Night 54°F Mostly Clear 3 mph NE 0%
Sunday 77°F Sunny 3 mph WSW 0%
Sunday Night 54°F Mostly Clear 2 mph N 0%
Monday 69°F Mostly Sunny 1 to 5 mph NW 0%
Monday Night 50°F Partly Cloudy 5 mph NNW 0%
Tuesday 65°F Mostly Sunny 2 to 6 mph NW 1%
Tuesday Night 48°F Partly Cloudy 5 mph NNW 1%
Wednesday 65°F Mostly Sunny 2 mph WNW 1%
Wednesday Night 51°F Partly Cloudy 0 to 5 mph NNE 2%
Thursday 68°F Mostly Sunny 5 mph SE 10%
Thursday Night 51°F Slight Chance Light Rain 3 mph N 22%
Friday 61°F Slight Chance Light Rain 5 mph WNW 22%

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

Growing snapshot for Cougar, WA

Last spring frost
Apr 1
First fall frost
Nov 18
Growing season
227 days
Hardiness zone
8a

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

Climate data from the nearest NOAA station, Cougar 6 E, Wa (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.