Harman US

Cascade Valley, WA Weather & Growing Conditions

Today
54°F
Mostly Cloudy
Mostly cloudy. High near 54, with temperatures falling to around 51 in the afternoon. North wind 2 to 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 54°F Mostly Cloudy 2 to 6 mph N 4%
Tonight 32°F Partly Cloudy then Patchy Fog 2 mph N 4%
Wednesday 53°F Patchy Fog then Sunny 1 to 5 mph SE 3%
Wednesday Night 37°F Chance Rain Showers 2 mph SE 32%
Thursday 57°F Mostly Sunny 1 to 6 mph SW 9%
Thursday Night 36°F Partly Cloudy 5 mph SE 9%
Friday 55°F Mostly Cloudy 2 to 8 mph S 9%
Friday Night 36°F Mostly Cloudy 5 mph E 2%
Saturday 59°F Partly Sunny 5 mph N 1%
Saturday Night 38°F Mostly Cloudy 2 to 6 mph S 9%
Sunday 59°F Partly Sunny 6 to 14 mph SW 9%
Sunday Night 36°F Mostly Cloudy 2 to 6 mph NW 7%
Monday 56°F Partly Sunny 3 mph NW 11%
Monday Night 36°F Chance Rain Showers 3 mph S 30%

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

Growing snapshot for Cascade Valley, WA

Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
7a

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

Climate data from the nearest NOAA station, Moses Lake Grant Co Ap, Wa (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.