West Linn, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Linn, a city in Clackamas County, Oregon.
Overnight
53°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 53. North northeast wind around 1 mph.
7-day forecast for West Linn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Patchy Fog | 1 mph NNE | 0% |
| Saturday | 78°F | Patchy Fog then Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 53°F | Mostly Clear | 2 mph NNE | 0% |
| Sunday | 82°F | Patchy Fog then Sunny | 1 to 5 mph N | 0% |
| Sunday Night | 55°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Monday | 76°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Monday Night | 54°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Tuesday | 73°F | Patchy Fog then Mostly Sunny | 1 to 5 mph N | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 1 to 5 mph N | 0% |
| Wednesday | 71°F | Patchy Fog then Partly Sunny | 3 mph N | 1% |
| Wednesday Night | 52°F | Mostly Cloudy | 3 mph N | 1% |
| Thursday | 70°F | Partly Sunny | 2 to 6 mph N | 11% |
| Thursday Night | 52°F | Mostly Cloudy | 2 to 6 mph NNW | 11% |
| Friday | 68°F | Mostly Sunny | 2 to 6 mph NNW | 9% |
Forecast source: National Weather Service (api.weather.gov) for West Linn (45.367, -122.639). Updated through the day.
Growing snapshot for West Linn
Last spring frost
Mar 18
First fall frost
Nov 18
Growing season
244 days
Hardiness zone
9a
More local growing data for West Linn: nearby ZIP 97068 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Oregon City, Or (3.1 mi from West Linn). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.