Brewster, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brewster, a city in Okanogan County, Washington.
This Afternoon
54°F
Partly Sunny
Partly sunny. High near 54, with temperatures falling to around 50 in the afternoon. Southwest wind around 1 mph.
7-day forecast for Brewster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Partly Sunny | 1 mph SW | 3% |
| Tonight | 35°F | Partly Cloudy | 1 mph NW | 3% |
| Wednesday | 54°F | Sunny | 0 to 3 mph E | 2% |
| Wednesday Night | 39°F | Slight Chance Rain Showers | 2 mph E | 23% |
| Thursday | 57°F | Mostly Sunny | 2 mph SE | 6% |
| Thursday Night | 37°F | Mostly Cloudy | 2 mph NW | 11% |
| Friday | 54°F | Mostly Cloudy | 0 to 3 mph SE | 11% |
| Friday Night | 37°F | Mostly Cloudy | 2 mph W | 6% |
| Saturday | 55°F | Mostly Cloudy | 1 mph NE | 6% |
| Saturday Night | 39°F | Mostly Cloudy | 1 mph NW | 11% |
| Sunday | 58°F | Partly Sunny | 1 to 9 mph SW | 10% |
| Sunday Night | 36°F | Mostly Cloudy | 0 to 3 mph W | 3% |
| Monday | 53°F | Partly Sunny | 1 mph E | 14% |
| Monday Night | 38°F | Chance Rain Showers | 1 mph W | 41% |
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 Nov 4, 2026.