Brewster, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brewster, a city in Okanogan County, Washington.
This Afternoon
82°F
Sunny
Sunny. High near 82, with temperatures falling to around 80 in the afternoon. Southeast wind around 2 mph.
7-day forecast for Brewster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 2 mph SE | 0% |
| Tonight | 55°F | Mostly Clear | 1 mph NW | 0% |
| Saturday | 82°F | Mostly Sunny | 0 to 3 mph E | 0% |
| Saturday Night | 56°F | Partly Cloudy | 2 mph NE | 0% |
| Sunday | 82°F | Sunny | 2 mph SE | 0% |
| Sunday Night | 57°F | Mostly Clear | 2 mph E | 0% |
| Monday | 83°F | Sunny | 0 to 3 mph S | 0% |
| Monday Night | 55°F | Partly Cloudy | 3 mph W | 0% |
| Tuesday | 79°F | Mostly Sunny | 3 mph SE | 0% |
| Tuesday Night | 53°F | Partly Cloudy | 3 mph W | 0% |
| Wednesday | 75°F | Mostly Sunny | 3 mph SW | 1% |
| Wednesday Night | 54°F | Mostly Cloudy | 0 to 3 mph W | 1% |
| Thursday | 75°F | Partly Sunny | 2 mph N | 7% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Brewster (48.107, -119.770). Updated through the day.
Growing snapshot for Brewster
Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
177 days
Hardiness zone
7a
More local growing data for Brewster: nearby ZIP 98812 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Conconully
Coulee Dam
Disautel
Elmer City
Loomis
Malott
Methow
Nespelem
North Omak
Okanogan
Omak
Oroville
Pateros
Riverside
Tonasket
Twisp
Winthrop
Climate data from the nearest NOAA station, Methow 2 S, Wa (9.5 mi from Brewster). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.