West Linn, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Linn, a city in Clackamas County, Oregon.
Tonight
40°F
Mostly Clear then Patchy Fog
Patchy fog after 1am. Mostly clear, with a low around 40. East wind around 1 mph.
7-day forecast for West Linn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Mostly Clear then Patchy Fog | 1 mph E | 2% |
| Wednesday | 57°F | Patchy Fog then Light Rain Likely | 2 mph S | 71% |
| Wednesday Night | 48°F | Light Rain | 2 to 8 mph SSW | 85% |
| Thursday | 59°F | Mostly Sunny | 3 mph WSW | 10% |
| Thursday Night | 44°F | Patchy Fog | 1 mph ESE | 9% |
| Friday | 59°F | Slight Chance Light Rain | 2 mph S | 24% |
| Friday Night | 46°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph SSE | 24% |
| Saturday | 63°F | Partly Sunny then Slight Chance Light Rain | 1 mph SSE | 17% |
| Saturday Night | 49°F | Light Rain | 1 to 12 mph S | 75% |
| Sunday | 57°F | Chance Light Rain | 1 to 9 mph SSW | 49% |
| Sunday Night | 44°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph E | 15% |
| Monday | 56°F | Chance Light Rain | 1 mph ESE | 29% |
| Monday Night | 46°F | Chance Light Rain | 1 to 5 mph S | 34% |
| Tuesday | 58°F | Chance Light Rain | 3 mph S | 39% |
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 Nov 4, 2026.