Deer Island, OR Weather & Growing Conditions
Overnight
51°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 51. Northwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Patchy Fog | 1 mph NW | 0% |
| Saturday | 77°F | Patchy Fog then Partly Sunny | 1 to 5 mph NNW | 0% |
| Saturday Night | 52°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 78°F | Mostly Sunny | 3 to 7 mph NNW | 0% |
| Sunday Night | 52°F | Mostly Clear | 7 mph NNW | 0% |
| Monday | 74°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Monday Night | 52°F | Partly Cloudy | 3 to 8 mph NW | 0% |
| Tuesday | 71°F | Partly Sunny | 3 to 7 mph NW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 1 to 7 mph NW | 1% |
| Wednesday | 70°F | Partly Sunny | 1 to 5 mph NW | 1% |
| Wednesday Night | 50°F | Mostly Cloudy | 5 mph NW | 1% |
| Thursday | 68°F | Mostly Cloudy | 2 to 7 mph NNW | 13% |
| Thursday Night | 50°F | Mostly Cloudy | 3 to 7 mph NNW | 13% |
| Friday | 67°F | Partly Sunny | 3 to 7 mph NW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Deer Island, OR
Last spring frost
Apr 18
First fall frost
Nov 7
Growing season
201 days
Hardiness zone
8b
Explore more for Deer Island, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Saint Helens Rfd, Or (8.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.