Harman US

Valley, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Valley, a community in Stevens County, Washington.

Tonight
46°F
Mostly Clear
Mostly clear. Low around 46, with temperatures rising to around 48 overnight. Wind around 0 mph.

7-day forecast for Valley

WhenTempForecastWindPrecip
Tonight 46°F Mostly Clear 0 mph 0%
Saturday 79°F Sunny 2 mph NE 0%
Saturday Night 46°F Partly Cloudy 1 mph W 0%
Sunday 80°F Sunny 2 mph SE 0%
Sunday Night 47°F Mostly Clear 2 mph NE 0%
Monday 81°F Sunny 3 mph S 0%
Monday Night 48°F Partly Cloudy 2 mph W 0%
Tuesday 79°F Mostly Sunny 0 to 5 mph S 0%
Tuesday Night 47°F Partly Cloudy 0 to 3 mph S 0%
Wednesday 74°F Mostly Sunny 0 to 6 mph S 1%
Wednesday Night 45°F Mostly Cloudy 0 to 5 mph SW 1%
Thursday 73°F Partly Sunny 0 to 3 mph S 2%
Thursday Night 45°F Mostly Cloudy 2 mph N 13%
Friday 69°F Partly Sunny then Slight Chance Rain Showers 3 mph E 17%

Forecast source: National Weather Service (api.weather.gov) for Valley (48.173, -117.724). Updated through the day.

Growing snapshot for Valley

Last spring frost
May 16
First fall frost
Sep 15
Growing season
120 days
Hardiness zone
6b

More local growing data for Valley: nearby ZIP 99181 weather · frost dates · planting calendar · Washington frost dates

Nearby towns & communities

All Washington locations ›

Climate data from the nearest NOAA station, Chewelah, Wa (9 mi from Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.