Harman US

White Swan, WA Weather & Growing Conditions

Overnight
55°F
Mostly Clear
Mostly clear. Low around 55, with temperatures rising to around 57 overnight. West wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 55°F Mostly Clear 3 mph W 0%
Saturday 80°F Mostly Sunny 2 to 7 mph NE 0%
Saturday Night 57°F Mostly Clear 5 mph W 0%
Sunday 82°F Sunny 2 to 7 mph NE 0%
Sunday Night 57°F Mostly Clear 5 mph W 0%
Monday 84°F Sunny 6 mph E 0%
Monday Night 56°F Partly Cloudy 5 mph W 0%
Tuesday 80°F Mostly Sunny 6 mph E 0%
Tuesday Night 52°F Partly Cloudy 6 mph S 0%
Wednesday 74°F Mostly Sunny 6 mph S 1%
Wednesday Night 51°F Mostly Cloudy 2 to 6 mph W 1%
Thursday 71°F Mostly Sunny 5 mph E 6%
Thursday Night 51°F Mostly Cloudy 5 mph S 10%
Friday 68°F Mostly Sunny 2 to 8 mph W 5%

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

Growing snapshot for White Swan, WA

Last spring frost
Apr 21
First fall frost
Oct 15
Growing season
176 days
Hardiness zone
7a

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

Climate data from the nearest NOAA station, Wapato, Wa (19.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.