Brewster, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brewster, a city in Okanogan County, Washington.
Today
54°F
Mostly Sunny
Mostly sunny. High near 54, with temperatures falling to around 51 in the afternoon. East wind around 2 mph.
7-day forecast for Brewster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Mostly Sunny | 2 mph E | 11% |
| Tonight | 39°F | Chance Rain Showers | 2 mph NE | 52% |
| Thursday | 57°F | Areas Of Fog then Sunny | 0 to 3 mph SE | 1% |
| Thursday Night | 39°F | Mostly Cloudy | 1 mph N | 7% |
| Friday | 51°F | Chance Rain Showers | 0 to 3 mph S | 31% |
| Friday Night | 37°F | Slight Chance Rain Showers | 2 mph NW | 20% |
| Saturday | 55°F | Mostly Cloudy | 1 mph N | 5% |
| Saturday Night | 39°F | Mostly Cloudy | 2 mph W | 9% |
| Sunday | 58°F | Partly Sunny | 2 to 7 mph SW | 9% |
| Sunday Night | 35°F | Mostly Cloudy | 3 mph W | 1% |
| Monday | 54°F | Partly Sunny | 1 mph E | 8% |
| Monday Night | 36°F | Chance Rain Showers | 1 mph E | 33% |
| Tuesday | 54°F | Chance Rain Showers | 1 mph SE | 38% |
| Tuesday Night | 39°F | Chance Rain Showers | 1 mph NW | 38% |
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.