Millersburg, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Millersburg, a city in Linn County, Oregon.
Today
95°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 95. North wind 6 to 12 mph, with gusts as high as 20 mph.
7-day forecast for Millersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Areas Of Smoke | 6 to 12 mph N | 0% |
| Tonight | 60°F | Smoke | 2 to 10 mph NNW | 0% |
| Wednesday | 98°F | Smoke | 5 mph NNW | 0% |
| Wednesday Night | 60°F | Clear | 1 to 5 mph W | 0% |
| Thursday | 98°F | Sunny | 0 to 6 mph NW | 0% |
| Thursday Night | 57°F | Clear | 1 to 6 mph WNW | 0% |
| Friday | 93°F | Sunny | 1 to 9 mph NW | 0% |
| Friday Night | 59°F | Clear | 3 to 9 mph NNW | 0% |
| Saturday | 89°F | Sunny | 3 to 10 mph N | 0% |
| Saturday Night | 55°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Sunday | 83°F | Sunny | 5 to 10 mph N | 0% |
| Sunday Night | 52°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Monday | 82°F | Sunny | 5 to 9 mph N | 0% |
| Monday Night | 52°F | Mostly Clear | 2 to 9 mph NNW | 0% |
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 Aug 4, 2026.