Cottage Grove, OR Weather & Growing Conditions
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. North wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 1 mph N | 0% |
| Tonight | 50°F | Mostly Clear | 0 mph | 0% |
| Sunday | 78°F | Patchy Fog then Mostly Sunny | 2 mph N | 1% |
| Sunday Night | 51°F | Partly Cloudy | 1 mph NNW | 0% |
| Monday | 75°F | Patchy Fog then Partly Sunny | 2 mph N | 0% |
| Monday Night | 51°F | Partly Cloudy | 2 mph NNW | 0% |
| Tuesday | 71°F | Patchy Fog then Mostly Sunny | 2 mph N | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 1 mph NNW | 0% |
| Wednesday | 69°F | Patchy Fog then Mostly Sunny | 1 mph N | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 2 mph N | 1% |
| Thursday | 67°F | Mostly Sunny | 3 mph N | 6% |
| Thursday Night | 48°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph N | 21% |
| Friday | 64°F | Slight Chance Light Rain | 3 mph N | 21% |
| Friday Night | 47°F | Partly Cloudy | 3 mph N | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cottage Grove, OR
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
193 days
Hardiness zone
8b
Explore more for Cottage Grove, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Drain, Or (13.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.