Millersburg, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millersburg, a city in Linn County, Oregon.
Overnight
50°F
Areas Of Fog
Areas of fog. Partly cloudy, with a low around 50. Wind around 0 mph.
7-day forecast for Millersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Areas Of Fog | 0 mph | 0% |
| Saturday | 77°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 51°F | Mostly Clear then Patchy Fog | 0 to 3 mph NNW | 0% |
| Sunday | 80°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph N | 0% |
| Sunday Night | 52°F | Mostly Clear then Patchy Fog | 1 to 5 mph NW | 0% |
| Monday | 76°F | Patchy Fog then Mostly Sunny | 1 to 6 mph NNW | 0% |
| Monday Night | 50°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Tuesday | 73°F | Mostly Sunny | 5 mph N | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Wednesday | 72°F | Patchy Fog then Mostly Sunny | 3 mph N | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph NNW | 1% |
| Thursday | 70°F | Mostly Sunny | 3 to 7 mph N | 11% |
| Thursday Night | 50°F | Mostly Cloudy | 6 mph N | 11% |
| Friday | 68°F | Mostly Sunny | 3 to 7 mph N | 9% |
Forecast source: National Weather Service (api.weather.gov) for Millersburg (44.679, -123.072). Updated through the day.
Growing snapshot for Millersburg
Last spring frost
Apr 17
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
8b
More local growing data for Millersburg: nearby ZIP 97321 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Corvallis State Univ, Or (2.8 mi from Millersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.