North Plains, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Plains, a city in Washington County, Oregon.
Tonight
36°F
Mostly Clear then Areas Of Fog
Areas of fog between 1am and 4am, then areas of fog and patchy frost. Mostly clear, with a low around 36. Wind around 0 mph.
7-day forecast for North Plains
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Mostly Clear then Areas Of Fog | 0 mph | 2% |
| Wednesday | 56°F | Areas Of Fog then Light Rain Likely | 2 mph SSE | 67% |
| Wednesday Night | 41°F | Light Rain then Areas Of Fog | 1 mph S | 87% |
| Thursday | 59°F | Areas Of Fog | 0 mph | 2% |
| Thursday Night | 39°F | Areas Of Fog | 0 mph | 34% |
| Friday | 57°F | Areas Of Fog then Chance Light Rain | 1 mph NNE | 41% |
| Friday Night | 42°F | Chance Light Rain | 0 mph | 34% |
| Saturday | 63°F | Partly Sunny then Chance Light Rain | 1 mph SE | 26% |
| Saturday Night | 45°F | Light Rain | 1 to 10 mph S | 76% |
| Sunday | 58°F | Chance Light Rain | 0 to 3 mph SW | 34% |
| Sunday Night | 39°F | Mostly Cloudy then Slight Chance Light Rain | 0 mph | 15% |
| Monday | 57°F | Chance Light Rain | 0 mph | 34% |
| Monday Night | 42°F | Chance Light Rain | 1 mph E | 41% |
| Tuesday | 58°F | Chance Light Rain | 1 mph S | 41% |
Forecast source: National Weather Service (api.weather.gov) for North Plains (45.597, -122.995). Updated through the day.
Growing snapshot for North Plains
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
8b
More local growing data for North Plains: nearby ZIP 97124 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Aloha
Banks
Beaverton
Bethany
Bull Mountain
Cedar Hills
Cedar Mill
Cherry Grove
Cornelius
Dilley
Durham
Forest Grove
Garden Home-Whitford
Gaston
Hillsboro
King City
Marlene Village
Metzger
Oak Hills
Raleigh Hills
Rockcreek
Sherwood
Tigard
Tualatin
West Haven-Sylvan
West Slope
Climate data from the nearest NOAA station, Portland-Hillsboro Ap, Or (2 mi from North Plains). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.