Harman US

Okanogan, WA Weather & Growing Conditions

Overnight
35°F
Mostly Clear
Mostly clear, with a low around 35. North wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 35°F Mostly Clear 3 mph N 1%
Wednesday 47°F Sunny 3 to 7 mph S 4%
Wednesday Night 37°F Chance Rain Showers 6 mph SE 36%
Thursday 48°F Mostly Sunny 7 mph S 2%
Thursday Night 36°F Partly Cloudy then Slight Chance Rain Showers 6 mph SE 22%
Friday 45°F Slight Chance Rain Showers then Mostly Cloudy 6 to 12 mph S 22%
Friday Night 36°F Mostly Cloudy 3 to 7 mph SE 9%
Saturday 49°F Mostly Cloudy 5 mph NW 9%
Saturday Night 37°F Mostly Cloudy 2 to 12 mph S 6%
Sunday 51°F Partly Sunny 5 to 13 mph S 6%
Sunday Night 35°F Mostly Cloudy 6 mph NW 1%
Monday 47°F Partly Sunny then Slight Chance Rain Showers 2 to 6 mph SE 15%
Monday Night 36°F Slight Chance Rain Showers then Chance Rain And Snow Showers 2 to 6 mph SW 33%
Tuesday 48°F Chance Rain And Snow Showers 3 to 8 mph S 33%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Okanogan, WA

Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
160 days
Hardiness zone
7a

Explore more for Okanogan, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Omak Ap, Wa (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.