Weather forecast for: Grass Valley OR
Last Update: 3:11 pm PDT Oct 27, 2026
Tonight: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 37. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 36 mph.
Wednesday: A 50 percent chance of showers, mainly before 5pm. Partly sunny, with a high near 50. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 34 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night: A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 33. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Thursday: Mostly sunny, with a high near 47. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Thursday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 33. Northeast wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Friday: Mostly sunny, with a high near 49.
Friday Night: Mostly clear, with a low around 31.
Saturday: Partly sunny, with a high near 47.
Saturday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 31.
Sunday: A slight chance of showers before 11am. Mostly sunny, with a high near 49.
Sunday Night: Mostly clear, with a low around 31.
Monday: Mostly sunny, with a high near 51.
Monday Night: Mostly cloudy, with a low around 33.
Tuesday: Partly sunny, with a high near 50.