North Powder, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Powder, a city in Union County, Oregon.
Tonight
39°F
Partly Cloudy
Partly cloudy. Low around 39, with temperatures rising to around 42 overnight. North wind around 3 mph.
7-day forecast for North Powder
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Partly Cloudy | 3 mph N | 1% |
| Saturday | 76°F | Sunny | 2 to 8 mph N | 1% |
| Saturday Night | 39°F | Mostly Clear | 0 to 6 mph NW | 1% |
| Sunday | 79°F | Sunny | 2 mph E | 0% |
| Sunday Night | 41°F | Mostly Clear | 0 mph | 0% |
| Monday | 80°F | Sunny | 0 to 3 mph E | 0% |
| Monday Night | 43°F | Mostly Clear | 1 mph N | 0% |
| Tuesday | 81°F | Sunny | 2 mph NE | 2% |
| Tuesday Night | 41°F | Mostly Clear | 2 mph N | 2% |
| Wednesday | 79°F | Sunny | 0 to 8 mph NE | 2% |
| Wednesday Night | 40°F | Partly Cloudy | 0 to 8 mph N | 2% |
| Thursday | 78°F | Mostly Sunny | 0 to 7 mph E | 2% |
| Thursday Night | 40°F | Partly Cloudy | 1 to 7 mph N | 3% |
| Friday | 74°F | Mostly Sunny | 1 to 10 mph NW | 8% |
Forecast source: National Weather Service (api.weather.gov) for North Powder (45.030, -117.920). Updated through the day.
Growing snapshot for North Powder
Last spring frost
May 11
First fall frost
Sep 26
Growing season
136 days
Hardiness zone
6b
More local growing data for North Powder: nearby ZIP 97867 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Union, Or (10.4 mi from North Powder). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.