Cascadia, OR Weather & Growing Conditions
This Afternoon
59°F
Partly Sunny
Partly sunny. High near 59, with temperatures falling to around 53 in the afternoon. South southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Partly Sunny | 3 mph SSW | 3% |
| Tonight | 39°F | Patchy Fog then Mostly Clear | 5 mph ESE | 3% |
| Wednesday | 61°F | Partly Sunny then Chance Light Rain | 1 to 5 mph SSW | 30% |
| Wednesday Night | 46°F | Light Rain | 5 mph S | 93% |
| Thursday | 59°F | Slight Chance Light Rain then Mostly Sunny | 2 mph SSW | 19% |
| Thursday Night | 43°F | Mostly Cloudy then Slight Chance Light Rain | 1 to 5 mph ESE | 17% |
| Friday | 61°F | Slight Chance Light Rain | 3 mph SSE | 24% |
| Friday Night | 44°F | Mostly Cloudy | 2 to 6 mph SE | 14% |
| Saturday | 67°F | Mostly Sunny then Slight Chance Light Rain | 0 to 5 mph SSE | 15% |
| Saturday Night | 47°F | Light Rain Likely | 0 to 8 mph S | 70% |
| Sunday | 58°F | Light Rain Likely | 0 to 7 mph SSW | 70% |
| Sunday Night | 44°F | Areas Of Fog then Mostly Cloudy | 0 to 5 mph SE | 17% |
| Monday | 60°F | Chance Light Rain | 3 mph SSE | 37% |
| Monday Night | 45°F | Chance Light Rain | 2 to 7 mph S | 37% |
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 Nov 4, 2026.