North Plains, OR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for North Plains, a city in Washington County, Oregon.

This Afternoon

81°F

Mostly Sunny

Mostly sunny, with a high near 81. North wind around 1 mph.

7-day forecast for North Plains

When	Temp	Forecast	Wind	Precip
This Afternoon	81°F	Mostly Sunny	1 mph N	0%
Tonight	50°F	Clear then Patchy Fog	2 mph NNW	0%
Sunday	83°F	Areas Of Fog then Sunny	0 to 5 mph NW	0%
Sunday Night	52°F	Mostly Clear	1 to 5 mph NNW	0%
Monday	78°F	Patchy Fog then Mostly Sunny	0 to 7 mph NNW	0%
Monday Night	50°F	Partly Cloudy	0 to 7 mph NNW	0%
Tuesday	74°F	Areas Of Fog then Partly Sunny	0 to 6 mph NNW	0%
Tuesday Night	48°F	Partly Cloudy then Patchy Fog	0 to 6 mph NNW	0%
Wednesday	72°F	Areas Of Fog then Partly Sunny	1 mph NNW	1%
Wednesday Night	48°F	Mostly Cloudy	2 mph NNW	3%
Thursday	69°F	Partly Sunny	1 to 6 mph NNW	6%
Thursday Night	48°F	Mostly Cloudy	2 to 6 mph NNW	14%
Friday	67°F	Partly Sunny	1 to 7 mph NNW	14%
Friday Night	46°F	Partly Cloudy	2 to 7 mph NW	9%

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

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

All Oregon locations ›

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 Sep 19, 2026.