97434 Weather (Cottage Grove, OR)

Weather forecast for: Cottage Grove OR

Last Update: 8:41 pm PDT Oct 23, 2026

Tonight: Patchy fog after midnight. Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 29. Calm wind.

Saturday: Areas of fog before 9am. Widespread frost before 10am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 66. Calm wind.

Saturday Night: Mostly cloudy, with a low around 32. Calm wind.

Sunday: A 50 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 66. Light south southeast wind.

Sunday Night: Rain likely. Patchy fog between 10pm and 11pm. Otherwise, mostly cloudy, with a low around 36. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Rain. High near 62. Chance of precipitation is 80%.

Monday Night: Rain likely, mainly before 11pm. Patchy fog between 8pm and 11pm. Otherwise, mostly cloudy, with a low around 36. Chance of precipitation is 60%.

Tuesday: A chance of rain, mainly before 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 63.

Tuesday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 33.

Wednesday: A chance of rain, mainly after 11am. Partly sunny, with a high near 63.

Wednesday Night: A slight chance of rain. Partly cloudy, with a low around 32.

Thursday: A slight chance of rain. Mostly sunny, with a high near 65.

Thursday Night: Partly cloudy, with a low around 32.

Friday: Mostly sunny, with a high near 65.