Vernonia, OR Weather & Growing Conditions
Tonight
47°F
Areas Of Fog
Areas of fog. Mostly cloudy, with a low around 47. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Areas Of Fog | 0 mph | 0% |
| Saturday | 76°F | Areas Of Fog then Partly Sunny | 2 mph N | 0% |
| Saturday Night | 46°F | Areas Of Fog | 2 mph NNW | 0% |
| Sunday | 77°F | Areas Of Fog then Mostly Sunny | 0 to 3 mph N | 0% |
| Sunday Night | 46°F | Patchy Fog | 3 mph NW | 0% |
| Monday | 72°F | Patchy Fog then Mostly Sunny | 1 to 5 mph NW | 0% |
| Monday Night | 46°F | Partly Cloudy then Areas Of Fog | 0 to 5 mph NW | 0% |
| Tuesday | 69°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NNW | 0% |
| Tuesday Night | 45°F | Partly Cloudy then Areas Of Fog | 0 to 5 mph NNW | 1% |
| Wednesday | 69°F | Areas Of Fog then Partly Sunny | 2 mph NNW | 1% |
| Wednesday Night | 46°F | Mostly Cloudy then Patchy Fog | 2 mph NNW | 1% |
| Thursday | 66°F | Partly Sunny | 0 to 3 mph NNW | 13% |
| Thursday Night | 45°F | Mostly Cloudy then Patchy Fog | 0 to 3 mph NW | 13% |
| Friday | 65°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NNW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vernonia, OR
Last spring frost
May 8
First fall frost
Oct 1
Growing season
144 days
Hardiness zone
8a
Explore more for Vernonia, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Vernonia #2, Or (2.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.