Mukilteo, WA Weather & Growing Conditions
This Afternoon
56°F
Partly Sunny
Partly sunny. High near 56, with temperatures falling to around 51 in the afternoon. North wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Partly Sunny | 3 mph N | 3% |
| Tonight | 42°F | Partly Cloudy | 0 to 5 mph E | 3% |
| Wednesday | 57°F | Mostly Sunny then Slight Chance Light Rain | 7 mph SSE | 23% |
| Wednesday Night | 50°F | Light Rain | 7 to 13 mph SSE | 87% |
| Thursday | 57°F | Chance Light Rain then Partly Sunny | 8 mph S | 25% |
| Thursday Night | 50°F | Light Rain | 6 to 14 mph SSE | 76% |
| Friday | 56°F | Light Rain | 6 to 14 mph SSE | 76% |
| Friday Night | 50°F | Chance Light Rain | 6 mph SSE | 46% |
| Saturday | 61°F | Chance Light Rain | 6 mph SSE | 35% |
| Saturday Night | 52°F | Light Rain Likely | 6 to 20 mph S | 74% |
| Sunday | 57°F | Light Rain Likely | 3 to 17 mph S | 71% |
| Sunday Night | 47°F | Slight Chance Light Rain | 6 mph SSE | 22% |
| Monday | 56°F | Chance Light Rain | 7 mph SE | 54% |
| Monday Night | 50°F | Light Rain Likely | 6 to 15 mph SSE | 72% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mukilteo, WA
Last spring frost
Mar 9
First fall frost
Nov 17
Growing season
250 days
Hardiness zone
8b
Explore more for Mukilteo, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Everett Snohomish Ap, Wa (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.