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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.