Cottage Grove, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottage Grove, a city in Lane County, Oregon.
Overnight
48°F
Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 48. Wind around 0 mph.
7-day forecast for Cottage Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Patchy Fog | 0 mph | 0% |
| Saturday | 80°F | Patchy Fog then Mostly Sunny | 2 mph N | 0% |
| Saturday Night | 49°F | Partly Cloudy | 1 mph N | 0% |
| Sunday | 80°F | Mostly Sunny | 0 to 3 mph NNW | 0% |
| Sunday Night | 50°F | Mostly Clear | 2 mph N | 0% |
| Monday | 76°F | Mostly Sunny | 0 to 3 mph NNW | 0% |
| Monday Night | 48°F | Mostly Clear | 0 to 3 mph N | 0% |
| Tuesday | 75°F | Patchy Fog then Mostly Sunny | 0 to 3 mph N | 0% |
| Tuesday Night | 46°F | Mostly Clear | 0 to 3 mph N | 0% |
| Wednesday | 74°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 2 mph N | 1% |
| Thursday | 73°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph N | 8% |
| Friday | 69°F | Mostly Sunny | 1 to 5 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov) for Cottage Grove (43.796, -123.057). Updated through the day.
Growing snapshot for Cottage Grove
Last spring frost
Apr 12
First fall frost
Nov 1
Growing season
205 days
Hardiness zone
8b
More local growing data for Cottage Grove: nearby ZIP 97424 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Cheshire
Coburg
Creswell
Dexter
Dunes City
Elmira
Eugene
Florence
Heceta Beach
Jasper
Junction City
Lowell
Mapleton
Marcola
Oakridge
River Road
Santa Clara
Springfield
Trent
Veneta
Westfir
Yachats
Climate data from the nearest NOAA station, Cottage Grove Dam, Or (2 mi from Cottage Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.