Willamina, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willamina, a city in Yamhill County, Oregon.
This Afternoon
63°F
Partly Sunny
Partly sunny. High near 63, with temperatures falling to around 58 in the afternoon. West wind around 1 mph.
7-day forecast for Willamina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Partly Sunny | 1 mph W | 4% |
| Tonight | 37°F | Areas Of Fog | 1 mph WNW | 4% |
| Wednesday | 57°F | Areas Of Fog then Light Rain | 2 mph ESE | 78% |
| Wednesday Night | 43°F | Light Rain then Mostly Cloudy | 1 to 5 mph SW | 97% |
| Thursday | 60°F | Patchy Fog then Partly Sunny | 0 to 3 mph SSW | 7% |
| Thursday Night | 44°F | Areas Of Fog | 2 mph SSE | 53% |
| Friday | 60°F | Chance Light Rain | 0 to 3 mph SE | 53% |
| Friday Night | 45°F | Slight Chance Light Rain then Areas Of Fog | 0 mph | 20% |
| Saturday | 64°F | Patchy Fog then Chance Light Rain | 0 to 3 mph S | 33% |
| Saturday Night | 48°F | Light Rain Likely | 3 to 15 mph SSW | 73% |
| Sunday | 59°F | Light Rain Likely | 1 to 13 mph SW | 67% |
| Sunday Night | 43°F | Areas Of Fog | 1 mph SSW | 19% |
| Monday | 59°F | Areas Of Fog | 0 to 3 mph SSE | 46% |
| Monday Night | 45°F | Light Rain Likely | 1 to 9 mph S | 58% |
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 3, 2026.