Greenhorn, OR Weather & Growing Conditions
Today
68°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 68. North wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Areas Of Smoke | 5 to 8 mph N | 0% |
| Tonight | 50°F | Areas Of Smoke | 3 to 7 mph NE | 0% |
| Wednesday | 75°F | Areas Of Smoke | 3 to 8 mph W | 0% |
| Wednesday Night | 57°F | Patchy Smoke then Mostly Clear | 2 to 7 mph W | 0% |
| Thursday | 79°F | Sunny | 2 to 10 mph W | 0% |
| Thursday Night | 60°F | Mostly Clear | 3 to 8 mph NW | 0% |
| Friday | 76°F | Sunny | 5 to 12 mph W | 0% |
| Friday Night | 57°F | Mostly Clear | 5 to 12 mph NW | 0% |
| Saturday | 74°F | Sunny | 5 to 13 mph NW | 0% |
| Saturday Night | 53°F | Mostly Clear | 6 to 13 mph NW | 0% |
| Sunday | 70°F | Sunny | 6 to 12 mph W | 0% |
| Sunday Night | 50°F | Mostly Clear | 6 to 12 mph NW | 0% |
| Monday | 69°F | Sunny | 6 to 10 mph NW | 0% |
| Monday Night | 49°F | Mostly Clear | 5 to 10 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greenhorn, OR
Growing season
74 days
Hardiness zone
6b
Explore more for Greenhorn, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Austin 3 S, Or (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.