Mount Vernon, OR Weather & Growing Conditions
Today
87°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 87. West wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Areas Of Smoke | 2 to 9 mph W | 0% |
| Tonight | 55°F | Areas Of Smoke | 3 to 9 mph NE | 0% |
| Wednesday | 95°F | Areas Of Smoke | 3 to 8 mph NW | 0% |
| Wednesday Night | 60°F | Areas Of Smoke then Mostly Clear | 2 to 8 mph N | 0% |
| Thursday | 100°F | Sunny | 3 to 9 mph W | 0% |
| Thursday Night | 63°F | Mostly Clear | 3 to 9 mph NW | 0% |
| Friday | 97°F | Sunny | 3 to 12 mph W | 0% |
| Friday Night | 60°F | Mostly Clear | 2 to 12 mph N | 0% |
| Saturday | 93°F | Sunny | 2 to 13 mph NW | 0% |
| Saturday Night | 59°F | Mostly Clear | 2 to 13 mph N | 0% |
| Sunday | 88°F | Sunny | 2 to 12 mph NW | 0% |
| Sunday Night | 56°F | Mostly Clear | 2 to 12 mph N | 0% |
| Monday | 88°F | Sunny | 2 to 12 mph N | 0% |
| Monday Night | 55°F | Mostly Clear | 2 to 12 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Vernon, OR
Last spring frost
May 28
First fall frost
Sep 18
Growing season
113 days
Hardiness zone
6b
Explore more for Mount Vernon, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, John Day, Or (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.