Cougar, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cougar, a community in Cowlitz County, Washington.
Tonight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. Northeast wind around 3 mph.
7-day forecast for Cougar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 3 mph NE | 0% |
| Saturday | 70°F | Mostly Sunny | 2 mph S | 0% |
| Saturday Night | 54°F | Mostly Clear | 1 to 5 mph NNE | 0% |
| Sunday | 74°F | Sunny | 3 mph W | 0% |
| Sunday Night | 54°F | Mostly Clear | 3 mph N | 0% |
| Monday | 67°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Wednesday | 61°F | Partly Sunny | 2 mph WNW | 0% |
| Wednesday Night | 48°F | Mostly Cloudy | 3 mph N | 2% |
| Thursday | 61°F | Partly Sunny then Slight Chance Light Rain | 2 mph NNW | 18% |
| Thursday Night | 48°F | Slight Chance Light Rain then Mostly Cloudy | 3 mph NNW | 18% |
| Friday | 58°F | Partly Sunny | 2 mph NW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Cougar (46.049, -122.303). Updated through the day.
Growing snapshot for Cougar
Last spring frost
Apr 1
First fall frost
Nov 18
Growing season
227 days
Hardiness zone
8b
More local growing data for Cougar: nearby ZIP 98603 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cougar 6 E, Wa (10.1 mi from Cougar). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.