Okanogan, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Okanogan, a city in Okanogan County, Washington.
Today
82°F
Mostly Sunny
Mostly sunny, with a high near 82. East wind 2 to 8 mph.
7-day forecast for Okanogan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 2 to 8 mph E | 0% |
| Tonight | 54°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Sunday | 84°F | Sunny | 1 to 8 mph W | 0% |
| Sunday Night | 54°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Monday | 84°F | Sunny | 1 to 8 mph SW | 0% |
| Monday Night | 54°F | Partly Cloudy | 1 to 7 mph W | 0% |
| Tuesday | 81°F | Mostly Sunny | 2 to 8 mph N | 1% |
| Tuesday Night | 51°F | Partly Cloudy | 2 to 8 mph W | 1% |
| Wednesday | 76°F | Mostly Sunny | 2 to 10 mph S | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 2 to 10 mph W | 4% |
| Thursday | 71°F | Partly Sunny | 5 mph NW | 12% |
| Thursday Night | 49°F | Mostly Cloudy | 2 to 7 mph NW | 12% |
| Friday | 69°F | Partly Sunny | 7 to 10 mph N | 14% |
| Friday Night | 46°F | Mostly Cloudy | 10 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for Okanogan (48.367, -119.579). Updated through the day.
Growing snapshot for Okanogan
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
7a
More local growing data for Okanogan: nearby ZIP 98840 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Brewster
Conconully
Coulee Dam
Disautel
Elmer City
Loomis
Malott
Methow
Nespelem
North Omak
Omak
Oroville
Pateros
Riverside
Tonasket
Twisp
Winthrop
Climate data from the nearest NOAA station, Omak Ap, Wa (11.7 mi from Okanogan). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.