Harman US

Steptoe, WA Weather & Growing Conditions

Tonight
47°F
Mostly Clear
Mostly clear, with a low around 47. South wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 47°F Mostly Clear 2 mph S 1%
Saturday 76°F Sunny 3 mph SW 0%
Saturday Night 48°F Mostly Clear 2 mph S 0%
Sunday 80°F Sunny 3 mph S 0%
Sunday Night 49°F Mostly Clear 2 mph E 0%
Monday 80°F Sunny 5 mph S 0%
Monday Night 50°F Mostly Clear 1 to 5 mph S 0%
Tuesday 77°F Mostly Sunny 5 mph SW 0%
Tuesday Night 48°F Partly Cloudy 5 mph SW 1%
Wednesday 73°F Mostly Sunny 5 mph SW 1%
Wednesday Night 46°F Partly Cloudy 3 mph E 0%
Thursday 79°F Mostly Sunny 5 mph SE 1%
Thursday Night 49°F Partly Cloudy 3 mph SE 7%
Friday 73°F Mostly Sunny 6 mph SW 11%

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

Growing snapshot for Steptoe, WA

Last spring frost
Apr 29
First fall frost
Oct 4
Growing season
161 days
Hardiness zone
6b

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

Climate data from the nearest NOAA station, St John, Wa (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.