Harman US

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

WhenTempForecastWindPrecip
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.