Mill City, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mill City, a city in Linn County, Oregon.
Today
96°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 96. North northeast wind 3 to 7 mph.
7-day forecast for Mill City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Areas Of Smoke | 3 to 7 mph NNE | 0% |
| Tonight | 62°F | Areas Of Smoke | 7 mph NE | 0% |
| Wednesday | 97°F | Areas Of Smoke | 3 to 7 mph NNW | 0% |
| Wednesday Night | 63°F | Clear | 1 to 6 mph NNE | 0% |
| Thursday | 96°F | Sunny | 2 to 7 mph NW | 0% |
| Thursday Night | 60°F | Clear | 0 to 7 mph NE | 0% |
| Friday | 91°F | Sunny | 1 to 8 mph N | 0% |
| Friday Night | 58°F | Mostly Clear | 1 to 8 mph NNE | 0% |
| Saturday | 87°F | Sunny | 1 to 9 mph N | 0% |
| Saturday Night | 54°F | Mostly Clear | 0 to 9 mph N | 0% |
| Sunday | 81°F | Sunny | 0 to 9 mph NNW | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 9 mph N | 0% |
| Monday | 80°F | Sunny | 0 to 8 mph NNW | 0% |
| Monday Night | 51°F | Mostly Clear | 0 to 8 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Mill City (44.752, -122.477). Updated through the day.
Growing snapshot for Mill City
Last spring frost
Mar 9
First fall frost
Dec 3
Growing season
270 days
Hardiness zone
8b
More local growing data for Mill City: nearby ZIP 97360 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Detroit Dam, Or (11.3 mi from Mill City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.