Cottage Grove Oregon Weather
Lane County · Lane County Forecast · Current Conditions & 7-Day Forecast
A charming Lane County city surrounded by forested mountains and covered bridges.
clear sky
Feels like 66°F
H:72° · L:55°
Hourly Forecast
7-Day Forecast
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Cottage Grove Oregon Weather Guide
Cottage Grove sits at 644 feet at the southern tip of the Willamette Valley where it transitions to the Umpqua watershed. This transitional location means it sees more rainfall than Southern Oregon's interior valleys (about 45 inches annually) but less than the Northern Willamette Valley. Summers are warm (mid-80s°F) with low humidity, and winters are cool and rainy rather than cold and snowy.
About Cottage Grove Weather Forecasts
Southern Oregon Weather provides real-time weather conditions and extended forecasts for Cottage Grove and all of Lane County. Our data is sourced from NOAA-certified weather stations and the OpenWeatherMap API, updated every 15 minutes.
Looking for weather in nearby Lane County communities? See all Eugene weather forecasts on Southern Oregon Weather.
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Frequently Asked Questions — Cottage Grove Weather
What is the weather in Cottage Grove Oregon today?
Current conditions for Cottage Grove, Oregon are updated every 15 minutes above. Check the temperature, humidity, wind speed, and sky conditions at the top of this page for the latest Cottage Grove weather.
What is the 7-day forecast for Cottage Grove Oregon?
The 7-day forecast for Cottage Grove is shown above, including daily high and low temperatures, precipitation probability, and wind. Cottage Grove is located in Lane County at approximately 43.80°N latitude.
Does Cottage Grove Oregon get snow?
Cottage Grove occasionally receives light snow in winter, typically in December through February. Valley-floor snow is not common but does occur during cold snaps. Nearby mountain areas such as the Cascades or Siskiyous receive far more significant snowfall.
What is the hottest month in Cottage Grove Oregon?
July and August are the hottest months in Cottage Grove, Oregon with average highs around 84°F. Southern Oregon's inland valleys can see temperatures well above 100°F during summer heat waves.
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