Cornelius, OR Weather & Growing Conditions
Today
61°F
Mostly Cloudy
Mostly cloudy. High near 61, with temperatures falling to around 56 in the afternoon. North northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 61°F | Mostly Cloudy | 1 mph NNE | 14% |
| Tonight | 36°F | Areas Of Fog | 0 mph | 5% |
| Wednesday | 56°F | Areas Of Fog then Light Rain Likely | 2 mph SSE | 69% |
| Wednesday Night | 43°F | Light Rain then Areas Of Fog | 2 mph S | 96% |
| Thursday | 58°F | Areas Of Fog then Partly Sunny | 2 mph W | 7% |
| Thursday Night | 43°F | Areas Of Fog | 0 mph | 61% |
| Friday | 58°F | Light Rain Likely | 2 mph E | 61% |
| Friday Night | 44°F | Slight Chance Light Rain then Areas Of Fog | 0 mph | 19% |
| Saturday | 62°F | Areas Of Fog then Slight Chance Light Rain | 1 mph E | 19% |
| Saturday Night | 47°F | Light Rain Likely | 1 to 13 mph S | 63% |
| Sunday | 59°F | Light Rain Likely | 0 to 6 mph SW | 60% |
| Sunday Night | 42°F | Areas Of Fog | 0 mph | 18% |
| Monday | 58°F | Areas Of Fog then Chance Light Rain | 2 mph SSE | 46% |
| Monday Night | 44°F | Light Rain Likely | 1 to 5 mph S | 55% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cornelius, OR
Last spring frost
Apr 16
First fall frost
Oct 26
Growing season
192 days
Hardiness zone
8b
Explore more for Cornelius, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Forest Grove, Or (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.