Mill City, OR Weather & Growing Conditions
Overnight
39°F
Mostly Clear
Mostly clear, with a low around 39. South southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Mostly Clear | 3 mph SSE | 0% |
| Wednesday | 60°F | Partly Sunny then Light Rain Likely | 2 to 6 mph S | 62% |
| Wednesday Night | 44°F | Light Rain | 1 to 6 mph SW | 94% |
| Thursday | 58°F | Chance Light Rain then Mostly Sunny | 1 mph S | 39% |
| Thursday Night | 40°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Friday | 61°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 3 mph SSE | 15% |
| Friday Night | 43°F | Slight Chance Light Rain then Mostly Cloudy | 0 to 6 mph SE | 15% |
| Saturday | 67°F | Mostly Sunny then Slight Chance Light Rain | 0 to 5 mph SSE | 15% |
| Saturday Night | 45°F | Light Rain Likely | 0 to 6 mph S | 70% |
| Sunday | 55°F | Light Rain Likely | 0 to 3 mph SW | 70% |
| Sunday Night | 42°F | Slight Chance Light Rain | 0 to 5 mph ENE | 15% |
| Monday | 58°F | Slight Chance Light Rain | 3 mph SE | 21% |
| Monday Night | 42°F | Chance Light Rain | 1 to 6 mph SSE | 29% |
| Tuesday | 60°F | Chance Light Rain | 2 to 6 mph SSE | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mill City, OR
Last spring frost
Mar 9
First fall frost
Dec 3
Growing season
270 days
Hardiness zone
8b
Explore more for Mill City, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Detroit Dam, Or (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.