Brewster, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brewster, a city in Okanogan County, Washington.
Overnight
61°F
Smoke
Smoke. Mostly clear. Low around 61, with temperatures rising to around 63 overnight. Northwest wind around 5 mph.
7-day forecast for Brewster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Smoke | 5 mph NW | 0% |
| Tuesday | 92°F | Smoke then Haze | 5 mph NE | 0% |
| Tuesday Night | 65°F | Smoke | 1 to 5 mph W | 0% |
| Wednesday | 98°F | Smoke | 1 to 6 mph SE | 0% |
| Wednesday Night | 67°F | Smoke then Mostly Clear | 1 to 6 mph W | 0% |
| Thursday | 102°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 71°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Friday | 101°F | Sunny | 2 to 10 mph W | 0% |
| Friday Night | 69°F | Mostly Clear | 5 to 13 mph NW | 0% |
| Saturday | 97°F | Sunny | 2 to 10 mph SW | 0% |
| Saturday Night | 67°F | Mostly Clear | 6 to 13 mph W | 0% |
| Sunday | 94°F | Sunny | 1 to 6 mph W | 0% |
| Sunday Night | 65°F | Mostly Clear | 5 to 9 mph W | 0% |
| Monday | 92°F | Sunny | 2 to 6 mph NW | 0% |
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 Aug 4, 2026.