97434 Weather (Cottage Grove, OR)

Weather forecast for: Cottage Grove OR

Last Update: 8:41 am PDT Sep 4, 2026

Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 69. South southeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers likely and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 60%.

Saturday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 75. Calm wind.

Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. Calm wind.

Sunday: A 40 percent chance of showers, mainly after 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 75. Calm wind.

Sunday Night: A 40 percent chance of showers before 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 45.

Labor Day: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77.

Monday Night: Mostly clear, with a low around 45.

Tuesday: Mostly sunny, with a high near 79.

Tuesday Night: Mostly clear, with a low around 47.

Wednesday: Mostly sunny, with a high near 84.

Wednesday Night: Mostly clear, with a low around 51.

Thursday: A slight chance of rain. Mostly sunny, with a high near 82.