Happy Valley, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Happy Valley, a city in Clackamas County, Oregon.
Overnight
56°F
Areas Of Smoke
Areas of smoke. Clear, with a low around 56. North wind around 8 mph.
7-day forecast for Happy Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Areas Of Smoke | 8 mph N | 0% |
| Tuesday | 94°F | Areas Of Smoke | 9 mph NNE | 0% |
| Tuesday Night | 60°F | Smoke | 5 to 10 mph N | 0% |
| Wednesday | 96°F | Areas Of Smoke | 6 mph N | 0% |
| Wednesday Night | 63°F | Clear | 2 to 6 mph N | 0% |
| Thursday | 95°F | Sunny | 2 to 6 mph NNW | 0% |
| Thursday Night | 62°F | Clear | 3 to 8 mph NNW | 0% |
| Friday | 90°F | Sunny | 2 to 8 mph NNW | 0% |
| Friday Night | 59°F | Mostly Clear | 3 to 8 mph NNW | 0% |
| Saturday | 85°F | Sunny | 3 to 10 mph NNW | 0% |
| Saturday Night | 56°F | Mostly Clear | 3 to 10 mph NNW | 0% |
| Sunday | 79°F | Sunny | 3 to 9 mph NNW | 0% |
| Sunday Night | 54°F | Mostly Clear | 2 to 9 mph NNW | 0% |
| Monday | 79°F | Sunny | 2 to 8 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Happy Valley (45.436, -122.510). Updated through the day.
Growing snapshot for Happy Valley
Last spring frost
Mar 18
First fall frost
Nov 18
Growing season
244 days
Hardiness zone
8b
More local growing data for Happy Valley: nearby ZIP 97086 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
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Johnson City
Lake Oswego
Milwaukie
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Mount Hood Villages
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Oregon City
Rhododendron
Rivergrove
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Climate data from the nearest NOAA station, Oregon City, Or (7.2 mi from Happy Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.