Cottage Grove, OR Weather & Growing Conditions
Overnight
34°F
Patchy Frost
Patchy frost. Mostly clear, with a low around 34. South southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 34°F | Patchy Frost | 3 mph SSE | 0% |
| Wednesday | 60°F | Areas Of Frost then Light Rain Likely | 3 mph SSW | 73% |
| Wednesday Night | 41°F | Light Rain Likely | 1 to 5 mph SSW | 64% |
| Thursday | 60°F | Patchy Fog then Mostly Sunny | 1 mph SSE | 10% |
| Thursday Night | 36°F | Patchy Fog then Partly Cloudy | 0 to 3 mph E | 1% |
| Friday | 63°F | Mostly Cloudy | 0 to 3 mph SSW | 2% |
| Friday Night | 38°F | Partly Cloudy | 2 mph ESE | 2% |
| Saturday | 66°F | Mostly Sunny then Slight Chance Light Rain | 2 mph SSW | 15% |
| Saturday Night | 42°F | Light Rain Likely | 0 to 8 mph S | 56% |
| Sunday | 56°F | Light Rain Likely | 0 to 3 mph SSW | 56% |
| Sunday Night | 38°F | Mostly Cloudy | 1 mph E | 12% |
| Monday | 58°F | Slight Chance Light Rain | 1 mph SSE | 15% |
| Monday Night | 40°F | Chance Light Rain | 0 to 5 mph E | 27% |
| Tuesday | 61°F | Chance Light Rain | 0 to 5 mph S | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cottage Grove, OR
Last spring frost
Apr 12
First fall frost
Nov 1
Growing season
205 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, Cottage Grove Dam, Or (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.