Cottage Grove, OR Weather & Growing Conditions
Today
56°F
Patchy Fog then Light Rain Likely
Patchy fog between 7am and 8am, then rain likely between 4pm and 5pm, then rain likely and patchy fog. Mostly cloudy. High near 56, with temperatures falling to around 51 in the afternoon. South wind around 2 mph. Chance of precipitation is 70%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 56°F | Patchy Fog then Light Rain Likely | 2 mph S | 72% |
| Tonight | 46°F | Light Rain Likely | 3 mph SSW | 65% |
| Thursday | 57°F | Patchy Fog then Mostly Sunny | 1 mph SSE | 3% |
| Thursday Night | 42°F | Partly Cloudy | 1 mph S | 2% |
| Friday | 59°F | Mostly Cloudy | 2 mph SSE | 4% |
| Friday Night | 42°F | Partly Cloudy | 0 mph | 3% |
| Saturday | 62°F | Mostly Sunny then Slight Chance Light Rain | 1 mph S | 15% |
| Saturday Night | 47°F | Light Rain Likely | 0 to 6 mph SSW | 64% |
| Sunday | 54°F | Light Rain Likely | 0 to 3 mph SW | 55% |
| Sunday Night | 43°F | Slight Chance Light Rain | 1 mph NE | 15% |
| Monday | 56°F | Slight Chance Light Rain | 1 mph SE | 18% |
| Monday Night | 44°F | Chance Light Rain | 0 to 3 mph S | 28% |
| Tuesday | 57°F | Chance Light Rain | 0 to 3 mph S | 31% |
| Tuesday Night | 45°F | Chance Light Rain | 0 to 3 mph S | 36% |
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 Nov 4, 2026.