Cascadia, OR Weather & Growing Conditions
Overnight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. East wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Partly Cloudy | 3 mph E | 0% |
| Saturday | 77°F | Mostly Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 53°F | Partly Cloudy | 0 to 3 mph SSE | 0% |
| Sunday | 79°F | Sunny | 0 to 6 mph WNW | 0% |
| Sunday Night | 53°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 75°F | Mostly Sunny | 0 to 6 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy then Patchy Fog | 0 to 6 mph NNE | 0% |
| Tuesday | 72°F | Patchy Fog then Mostly Sunny | 0 to 6 mph NW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 1 to 6 mph NNE | 0% |
| Wednesday | 71°F | Mostly Sunny | 1 to 6 mph N | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 1 to 5 mph NE | 0% |
| Thursday | 70°F | Mostly Sunny | 1 to 6 mph NE | 5% |
| Thursday Night | 48°F | Mostly Cloudy | 1 to 6 mph NNE | 10% |
| Friday | 68°F | Partly Sunny | 1 to 6 mph NNW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cascadia, OR
Last spring frost
Apr 12
First fall frost
Oct 28
Growing season
197 days
Hardiness zone
8b
Explore more for Cascadia, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Foster Dam, Or (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.