Bethany, OR Weather & Growing Conditions
This Afternoon
71°F
Sunny
Sunny, with a high near 71. North northeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 1 mph NNE | 0% |
| Tonight | 53°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 78°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 55°F | Partly Cloudy | 5 mph N | 0% |
| Sunday | 82°F | Sunny | 5 mph NNW | 0% |
| Sunday Night | 55°F | Mostly Clear | 5 mph NNW | 0% |
| Monday | 76°F | Mostly Sunny | 2 to 6 mph NNW | 0% |
| Monday Night | 54°F | Partly Cloudy | 2 to 6 mph NNW | 0% |
| Tuesday | 72°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Wednesday | 71°F | Mostly Sunny | 2 mph N | 0% |
| Wednesday Night | 54°F | Partly Cloudy | 2 mph NNW | 2% |
| Thursday | 75°F | Mostly Sunny | 2 mph NNW | 7% |
| Thursday Night | 55°F | Slight Chance Light Rain | 2 mph NW | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bethany, OR
Last spring frost
Feb 11
First fall frost
Dec 5
Growing season
303 days
Hardiness zone
8b
Explore more for Bethany, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Nature Park-Beaverton, Or (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.