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Grass Valley, OR Weather Forecast
Grass Valley, OR Weather Forecast Dated: 923 PM Mon Oct 26 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Monday, October 26, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
47°F 8°C
Scattered Showers
Brisk around 52°F 11°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SSW to the SW at 12 mph 20 km/h. Gusts up to 21 mph 33 km/h.
Tuesday, October 27, 2026
Mid-Morning
46°F 8°C
Scattered Showers
Mid-Afternoon
53°F 12°C
Scattered Showers
Early-Evening
47°F 9°C
Cloudy
Cool and brisk at 53°F 12°C, scattered downpours possible, with steady humidity and steady pressure. Winds building from SW at 9 mph 15 km/h to WSW at 17 mph 28 km/h. Gusts up to 25 mph 40 km/h.
Wednesday, October 28, 2026
Mid-Morning
42°F 5°C
Partly Cloudy
Mid-Afternoon
47°F 8°C
Overcast
Early-Evening
44°F 7°C
Overcast
Chilly near 47°F 8°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the SSW to the SW at 14 mph 22 km/h. Gusts up to 22 mph 35 km/h.
Thursday, October 29, 2026
Mid-Morning
40°F 5°C
Overcast
Mid-Afternoon
48°F 9°C
Overcast
Early-Evening
44°F 7°C
Overcast
Crisp with a high near 48°F 9°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds picking up from SSW at 2 mph 3 km/h to ENE at 10 mph 17 km/h.
Friday, October 30, 2026
Mid-Morning
41°F 5°C
Partly Cloudy
Mid-Afternoon
50°F 10°C
Partly Cloudy
Early-Evening
44°F 7°C
Clear
Brisk around 50°F 10°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds shifting from the SSW to the NNW at 5 mph 8 km/h.
Saturday, October 31, 2026
Mid-Morning
40°F 4°C
Overcast
Mid-Afternoon
46°F 8°C
Overcast
Early-Evening
42°F 5°C
Scattered Showers
Cool and brisk at 46°F 8°C, locally heavy downpours at times, with steady humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
40°F 5°C
Clear
Chilly near 46°F 8°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the WSW to the NE at 2 mph 3 km/h.
Monday, November 2, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
45°F 7°C
Overcast
Early-Evening
40°F 5°C
Cloudy
Crisp with a high near 45°F 7°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the ENE to the NE at 7 mph 11 km/h.
Tuesday, November 3, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
45°F 7°C
Overcast
Early-Evening
40°F 5°C
Overcast
Brisk around 45°F 7°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the ENE to the NE at 6 mph 10 km/h.
Wednesday, November 4, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
46°F 8°C
Overcast
Early-Evening
42°F 5°C
Cloudy
Cool and brisk at 46°F 8°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling.
Thursday, November 5, 2026
Mid-Morning
42°F 6°C
Overcast
Mid-Afternoon
48°F 9°C
Overcast
Early-Evening
44°F 7°C
Overcast
Chilly near 48°F 9°C, overcast throughout the day, with steady humidity and steady pressure.
Friday, November 6, 2026
Mid-Morning
45°F 7°C
Scattered Showers
Mid-Afternoon
47°F 9°C
Scattered Showers
Early-Evening
46°F 8°C
Drizzle
Crisp with a high near 47°F 9°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling.
Saturday, November 7, 2026
Mid-Morning
48°F 9°C
Cloudy
Mid-Afternoon
52°F 11°C
Cloudy
Early-Evening
47°F 8°C
Partly Cloudy
Brisk around 52°F 11°C, cloudy throughout the day, with steady humidity and steady pressure.
Sunday, November 8, 2026
Mid-Morning
50°F 10°C
Drizzle
Mid-Afternoon
53°F 12°C
Scattered Showers
Early-Evening
50°F 10°C
Partly Cloudy
Cool and brisk at 53°F 12°C, scattered downpours possible, with steady humidity and steady pressure. Winds WSW at 8 mph 12 km/h.
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