Cathcart, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cathcart, a community in Snohomish County, Washington.
Overnight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. North northwest wind around 1 mph.
7-day forecast for Cathcart
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Mostly Cloudy | 1 mph NNW | 0% |
| Saturday | 73°F | Partly Sunny | 2 mph NNW | 0% |
| Saturday Night | 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% |
Forecast source: National Weather Service (api.weather.gov) for Cathcart (47.853, -122.106). Updated through the day.
Growing snapshot for Cathcart
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b
More local growing data for Cathcart: nearby ZIP 98296 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
Arlington
Arlington Heights
Bothell East
Bothell West
Brier
Bunk Foss
Canyon Creek
Cavalero
Chain Lake
Clearview
Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
Lake Cassidy
Lake Cavanaugh
Lake Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Lochsloy
Climate data from the nearest NOAA station, Monroe, Wa (5 mi from Cathcart). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.