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
40°F
Mostly Clear
Mostly clear, with a low around 40. East wind around 5 mph.
7-day forecast for Happy Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Mostly Clear | 5 mph E | 2% |
| Wednesday | 57°F | Partly Sunny then Light Rain Likely | 3 mph SSE | 67% |
| Wednesday Night | 48°F | Light Rain | 3 to 13 mph SSW | 89% |
| Thursday | 57°F | Mostly Sunny | 2 to 6 mph SW | 12% |
| Thursday Night | 44°F | Mostly Cloudy | 3 mph E | 10% |
| Friday | 57°F | Chance Light Rain | 3 mph SSE | 28% |
| Friday Night | 46°F | Chance Light Rain then Mostly Cloudy | 1 to 5 mph SE | 28% |
| Saturday | 62°F | Partly Sunny then Slight Chance Light Rain | 1 to 5 mph SE | 16% |
| Saturday Night | 49°F | Light Rain | 2 to 10 mph SSE | 75% |
| Sunday | 56°F | Light Rain Likely | 2 to 9 mph SSW | 55% |
| Sunday Night | 44°F | Slight Chance Light Rain then Mostly Cloudy | 3 mph E | 15% |
| Monday | 55°F | Chance Light Rain | 2 mph E | 29% |
| Monday Night | 46°F | Chance Light Rain | 2 to 6 mph SSE | 36% |
| Tuesday | 57°F | Chance Light Rain | 2 to 6 mph S | 38% |
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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Dunthorpe
Estacada
Gladstone
Government Camp
Jennings Lodge
Johnson City
Lake Oswego
Milwaukie
Molalla
Mount Hood Villages
Mulino
Oak Grove
Oatfield
Oregon City
Rhododendron
Rivergrove
Sandy
Stafford
West Linn
Wilsonville
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 Nov 4, 2026.