West Slope, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Slope, a community in Washington County, Oregon.
Today
97°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 97. North northeast wind 5 to 8 mph.
7-day forecast for West Slope
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Areas Of Smoke | 5 to 8 mph NNE | 0% |
| Tonight | 64°F | Smoke | 2 to 8 mph N | 0% |
| Wednesday | 100°F | Areas Of Smoke | 5 mph N | 0% |
| Wednesday Night | 66°F | Clear | 0 to 5 mph NNW | 0% |
| Thursday | 100°F | Sunny | 0 to 3 mph N | 0% |
| Thursday Night | 63°F | Clear | 0 to 5 mph NNW | 0% |
| Friday | 95°F | Sunny | 0 to 7 mph N | 0% |
| Friday Night | 61°F | Mostly Clear | 1 to 7 mph NNW | 0% |
| Saturday | 88°F | Sunny | 1 to 9 mph NNW | 0% |
| Saturday Night | 58°F | Mostly Clear | 1 to 9 mph NNW | 0% |
| Sunday | 83°F | Sunny | 1 to 8 mph NNW | 0% |
| Sunday Night | 56°F | Mostly Clear | 0 to 8 mph NNW | 0% |
| Monday | 83°F | Sunny | 0 to 7 mph NNW | 0% |
| Monday Night | 56°F | Mostly Clear | 0 to 7 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for West Slope (45.496, -122.773). Updated through the day.
Growing snapshot for West Slope
Last spring frost
Feb 11
First fall frost
Dec 5
Growing season
303 days
Hardiness zone
8b
More local growing data for West Slope: nearby ZIP 97225 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Nature Park-Beaverton, Or (3.4 mi from West Slope). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.