Willamina, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willamina, a city in Yamhill County, Oregon.
This Afternoon
71°F
Sunny
Sunny, with a high near 71. West wind around 5 mph.
7-day forecast for Willamina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 5 mph W | 0% |
| Tonight | 49°F | Partly Cloudy then Areas Of Fog | 0 to 5 mph NW | 0% |
| Saturday | 79°F | Areas Of Fog then Partly Sunny | 0 to 3 mph NNW | 0% |
| Saturday Night | 51°F | Partly Cloudy | 3 mph WNW | 0% |
| Sunday | 80°F | Patchy Fog then Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 50°F | Mostly Clear | 6 mph WNW | 0% |
| Monday | 76°F | Mostly Sunny | 0 to 6 mph NW | 0% |
| Monday Night | 48°F | Partly Cloudy | 2 to 6 mph WNW | 0% |
| Tuesday | 72°F | Patchy Fog then Mostly Sunny | 1 to 6 mph NW | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 0 to 6 mph NW | 0% |
| Wednesday | 73°F | Mostly Sunny | 1 mph N | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 1 mph N | 2% |
| Thursday | 75°F | Mostly Sunny | 2 mph NNW | 6% |
| Thursday Night | 49°F | Slight Chance Light Rain | 3 mph W | 21% |
Forecast source: National Weather Service (api.weather.gov) for Willamina (45.079, -123.485). Updated through the day.
Growing snapshot for Willamina
Last spring frost
Apr 16
First fall frost
Nov 1
Growing season
199 days
Hardiness zone
8b
More local growing data for Willamina: nearby ZIP 97378 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dallas 2 Ne, Or (11.5 mi from Willamina). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.