Cornelius, OR Weather & Growing Conditions
Today
80°F
Patchy Fog then Mostly Sunny
Patchy fog before 8am. Mostly sunny, with a high near 80. North wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Fog then Mostly Sunny | 1 mph N | 0% |
| Tonight | 51°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 83°F | Sunny | 0 to 6 mph NNW | 0% |
| Sunday Night | 53°F | Mostly Clear | 1 to 6 mph NNW | 0% |
| Monday | 77°F | Mostly Sunny | 0 to 7 mph NNW | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 to 7 mph NNW | 0% |
| Tuesday | 74°F | Mostly Sunny | 0 to 6 mph NNW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 6 mph NNW | 0% |
| Wednesday | 72°F | Partly Sunny | 2 mph N | 0% |
| Wednesday Night | 50°F | Mostly Cloudy | 2 mph NNW | 2% |
| Thursday | 70°F | Partly Sunny | 1 to 6 mph NNW | 11% |
| Thursday Night | 50°F | Mostly Cloudy | 2 to 6 mph NNW | 11% |
| Friday | 69°F | Mostly Sunny | 2 to 7 mph NNW | 9% |
| Friday Night | 48°F | Partly Cloudy | 2 to 7 mph NNW | 4% |
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 Sep 19, 2026.