Mill Creek, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mill Creek, a city in Snohomish County, Washington.
Today
71°F
Mostly Sunny
Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. West northwest wind around 2 mph.
7-day forecast for Mill Creek
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 2 mph WNW | 0% |
| Tonight | 51°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 70°F | Partly Sunny | 3 mph N | 0% |
| Sunday Night | 51°F | Partly Cloudy | 3 mph N | 0% |
| Monday | 70°F | Mostly Sunny | 3 mph N | 0% |
| Monday Night | 52°F | Partly Cloudy | 3 mph N | 0% |
| Tuesday | 67°F | Partly Sunny | 2 mph N | 0% |
| Tuesday Night | 50°F | Mostly Cloudy | 2 mph NE | 11% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Light Rain | 2 mph SSW | 16% |
| Wednesday Night | 51°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph N | 16% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph NNW | 18% |
| Thursday Night | 50°F | Slight Chance Light Rain | 5 mph NNW | 20% |
| Friday | 63°F | Slight Chance Light Rain | 3 mph NNW | 16% |
| Friday Night | 48°F | Slight Chance Light Rain then Partly Cloudy | 3 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Mill Creek (47.865, -122.211). Updated through the day.
Growing snapshot for Mill Creek
Last spring frost
Mar 9
First fall frost
Nov 17
Growing season
250 days
Hardiness zone
8b
More local growing data for Mill Creek: nearby ZIP 98012 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
Cathcart
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
Climate data from the nearest NOAA station, Everett Snohomish Ap, Wa (5.9 mi from Mill Creek). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.