Willamina, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willamina, a city in Yamhill County, Oregon.
Overnight
57°F
Areas Of Smoke
Areas of smoke. Clear, with a low around 57. West southwest wind around 3 mph.
7-day forecast for Willamina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Areas Of Smoke | 3 mph WSW | 0% |
| Tuesday | 95°F | Areas Of Smoke | 3 to 8 mph ENE | 0% |
| Tuesday Night | 62°F | Areas Of Smoke | 0 to 5 mph NNW | 0% |
| Wednesday | 98°F | Areas Of Smoke | 0 to 7 mph NW | 0% |
| Wednesday Night | 61°F | Clear | 0 to 7 mph NW | 0% |
| Thursday | 94°F | Sunny | 0 to 8 mph NW | 0% |
| Thursday Night | 57°F | Clear | 3 to 8 mph WNW | 0% |
| Friday | 91°F | Sunny | 1 to 8 mph NW | 0% |
| Friday Night | 56°F | Clear | 3 to 8 mph WNW | 0% |
| Saturday | 84°F | Sunny | 2 to 10 mph NW | 0% |
| Saturday Night | 53°F | Mostly Clear | 3 to 10 mph WNW | 0% |
| Sunday | 79°F | Sunny | 2 to 10 mph NW | 0% |
| Sunday Night | 52°F | Mostly Clear | 2 to 10 mph WNW | 0% |
| Monday | 79°F | Sunny | 2 to 9 mph NW | 0% |
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 Aug 4, 2026.