Oak Harbor, WA Weather & Growing Conditions
Overnight
38°F
Patchy Fog
Patchy fog before 4am. Partly cloudy, with a low around 38. East southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 38°F | Patchy Fog | 3 mph ESE | 1% |
| Wednesday | 58°F | Partly Sunny then Chance Light Rain | 3 to 16 mph SE | 50% |
| Wednesday Night | 43°F | Light Rain | 6 to 17 mph S | 88% |
| Thursday | 57°F | Mostly Sunny | 6 to 13 mph S | 8% |
| Thursday Night | 44°F | Light Rain | 13 to 21 mph SE | 87% |
| Friday | 56°F | Light Rain | 16 to 28 mph SE | 87% |
| Friday Night | 45°F | Light Rain Likely | 5 to 16 mph SE | 63% |
| Saturday | 63°F | Chance Light Rain | 5 to 20 mph SE | 33% |
| Saturday Night | 47°F | Light Rain | 15 to 20 mph SSE | 83% |
| Sunday | 56°F | Chance Light Rain | 2 to 15 mph S | 48% |
| Sunday Night | 41°F | Slight Chance Light Rain | 3 mph SE | 17% |
| Monday | 54°F | Chance Light Rain | 2 to 12 mph ESE | 45% |
| Monday Night | 45°F | Light Rain Likely | 12 to 18 mph SE | 60% |
| Tuesday | 58°F | Light Rain Likely | 17 to 23 mph SE | 60% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oak Harbor, WA
Last spring frost
Mar 13
First fall frost
Nov 14
Growing season
244 days
Hardiness zone
8b
Explore more for Oak Harbor, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Whidbey Island Nas, Wa (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.