Harman US

Cascadia, OR Weather & Growing Conditions

Overnight
36°F
Mostly Clear
Mostly clear, with a low around 36. Southeast wind around 6 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 36°F Mostly Clear 6 mph SE 1%
Wednesday 50°F Partly Sunny then Chance Light Rain 2 to 7 mph SSW 37%
Wednesday Night 41°F Light Rain 3 to 7 mph SW 90%
Thursday 48°F Slight Chance Light Rain then Mostly Sunny 3 mph SSW 24%
Thursday Night 39°F Partly Cloudy 1 to 7 mph E 2%
Friday 52°F Mostly Cloudy 1 to 6 mph ESE 8%
Friday Night 43°F Partly Cloudy 1 to 9 mph E 8%
Saturday 58°F Mostly Sunny then Slight Chance Light Rain 2 to 9 mph S 15%
Saturday Night 43°F Light Rain Likely 2 to 6 mph SSW 71%
Sunday 46°F Light Rain Likely 1 to 5 mph WSW 71%
Sunday Night 41°F Slight Chance Light Rain 1 to 7 mph ENE 15%
Monday 49°F Slight Chance Light Rain 5 mph SSE 20%
Monday Night 43°F Chance Light Rain 2 to 7 mph SSE 28%
Tuesday 51°F Chance Light Rain 1 to 7 mph S 33%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Cascadia, OR

Last spring frost
Apr 29
First fall frost
Oct 13
Growing season
167 days
Hardiness zone
8b

Explore more for Cascadia, OR: full frost dates · planting calendar · Oregon frost dates

Climate data from the nearest NOAA station, Cascadia, Or (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.