Tonasket, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tonasket, a city in Okanogan County, Washington.
Tonight
53°F
Partly Cloudy
Partly cloudy. Low around 53, with temperatures rising to around 55 overnight. North wind around 2 mph.
7-day forecast for Tonasket
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 80°F | Mostly Sunny | 1 to 8 mph N | 0% |
| Saturday Night | 52°F | Partly Cloudy | 1 to 5 mph SE | 0% |
| Sunday | 81°F | Sunny | 1 to 9 mph E | 0% |
| Sunday Night | 53°F | Mostly Clear | 1 to 9 mph SE | 0% |
| Monday | 81°F | Sunny | 1 to 7 mph SE | 0% |
| Monday Night | 53°F | Partly Cloudy | 2 to 7 mph NW | 0% |
| Tuesday | 77°F | Mostly Sunny | 2 to 7 mph SW | 1% |
| Tuesday Night | 52°F | Partly Cloudy | 2 to 7 mph W | 1% |
| Wednesday | 73°F | Mostly Sunny | 2 to 7 mph W | 3% |
| Wednesday Night | 51°F | Mostly Cloudy | 2 to 7 mph E | 3% |
| Thursday | 74°F | Partly Sunny | 5 mph N | 9% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph E | 11% |
| Friday | 71°F | Partly Sunny | 3 to 8 mph NW | 11% |
Forecast source: National Weather Service (api.weather.gov) for Tonasket (48.708, -119.442). Updated through the day.
Growing snapshot for Tonasket
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
6b
More local growing data for Tonasket: nearby ZIP 98849 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Brewster
Conconully
Coulee Dam
Disautel
Elmer City
Loomis
Malott
Methow
Nespelem
North Omak
Okanogan
Omak
Oroville
Pateros
Riverside
Twisp
Winthrop
Climate data from the nearest NOAA station, Omak Ap, Wa (7.4 mi from Tonasket). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.