Harman US

Cathcart, WA Weather & Growing Conditions

Today
73°F
Partly Sunny
Partly sunny. High near 73, with temperatures falling to around 71 in the afternoon. North northwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 73°F Partly Sunny 2 mph NNW 0%
Tonight 50°F Mostly Clear 2 mph NNW 0%
Sunday 72°F Partly Sunny 3 mph NNW 0%
Sunday Night 49°F Partly Cloudy 3 mph N 0%
Monday 71°F Mostly Sunny 3 mph N 0%
Monday Night 50°F Partly Cloudy 3 mph N 0%
Tuesday 68°F Partly Sunny 2 mph N 0%
Tuesday Night 49°F Mostly Cloudy 2 mph NE 11%
Wednesday 67°F Partly Sunny then Slight Chance Light Rain 2 mph SW 16%
Wednesday Night 49°F Slight Chance Light Rain then Mostly Cloudy 2 mph N 16%
Thursday 64°F Mostly Cloudy then Slight Chance Light Rain 3 mph NNW 19%
Thursday Night 48°F Slight Chance Light Rain 3 mph N 20%
Friday 64°F Slight Chance Light Rain 2 mph N 16%
Friday Night 47°F Slight Chance Light Rain 2 mph NNE 16%

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

Growing snapshot for Cathcart, WA

Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b

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

Climate data from the nearest NOAA station, Monroe, Wa (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.