Willamina, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willamina, a city in Yamhill County, Oregon.
This Afternoon
57°F
Light Rain
Rain after 2pm. Cloudy. High near 57, with temperatures falling to around 53 in the afternoon. East southeast wind around 2 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Willamina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain | 2 mph ESE | 80% |
| Tonight | 44°F | Light Rain Likely | 3 mph SW | 68% |
| Thursday | 58°F | Areas Of Fog then Mostly Sunny | 2 mph ENE | 3% |
| Thursday Night | 41°F | Areas Of Fog | 0 mph | 9% |
| Friday | 58°F | Chance Light Rain | 2 mph SSE | 49% |
| Friday Night | 46°F | Chance Light Rain then Areas Of Fog | 2 mph SSE | 48% |
| Saturday | 64°F | Areas Of Fog then Chance Light Rain | 0 to 3 mph SSE | 41% |
| Saturday Night | 48°F | Light Rain | 2 to 15 mph SSW | 86% |
| Sunday | 57°F | Chance Light Rain | 0 to 10 mph W | 52% |
| Sunday Night | 42°F | Mostly Cloudy | 0 mph | 3% |
| Monday | 57°F | Partly Sunny then Slight Chance Light Rain | 2 mph ESE | 19% |
| Monday Night | 44°F | Chance Light Rain | 0 to 9 mph SSE | 41% |
| Tuesday | 59°F | Chance Light Rain | 5 to 9 mph S | 52% |
| Tuesday Night | 46°F | Chance Light Rain | 5 to 12 mph S | 52% |
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 Nov 4, 2026.