Grass Valley, OR Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Valley, OR in one place.
Sunny. High near 65, with temperatures falling to around 63 in the afternoon. East wind around 13 mph, with gusts as high as 23 mph.
Local Weather Overview
This forecast page for Grass Valley, OR is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 4:15 PM PDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Grass Valley, OR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 4:15 PM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Valley
Friday looks like the warmest upcoming period in Grass Valley at 70 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for This Afternoon at about 13 mph E.
The forecast from Oct 15 through Oct 21 stays mostly dry.
Forecast Details
- Last updated
- Oct 15, 2026 4:15 PM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- PDT
- Radar station
- KPDT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 41. Southeast wind 2 to 10 mph, with gusts as high as 18 mph.
Sunny. High near 70, with temperatures falling to around 68 in the afternoon. South wind around 5 mph.
Mostly cloudy, with a low around 45. South wind 0 to 6 mph.
Partly sunny, with a high near 62. West wind 6 to 12 mph, with gusts as high as 23 mph.
Mostly clear, with a low around 37.
Sunny, with a high near 57.
Partly cloudy, with a low around 39.
Mostly cloudy, with a high near 56.
Mostly cloudy, with a low around 39.
Mostly sunny, with a high near 56.
Partly cloudy, with a low around 39.
Mostly sunny, with a high near 59.
Partly cloudy, with a low around 40.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Sunny
|
65°F |
13 mph
E
|
|
Tonight
Oct 15
|
Mostly Clear
|
41°F |
2 to 10 mph
SE
|
|
Friday
Oct 16
|
Sunny
|
70°F |
5 mph
S
|
|
Friday Night
Oct 16
|
Mostly Cloudy
|
45°F |
0 to 6 mph
S
|
|
Saturday
Oct 17
|
Partly Sunny
|
62°F |
6 to 12 mph
W
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
37°F |
1 to 12 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
57°F |
1 to 7 mph
SE
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
39°F |
0 to 7 mph
SW
|
|
Monday
Oct 19
|
Mostly Cloudy
|
56°F |
1 to 7 mph
W
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
39°F |
2 to 7 mph
W
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
56°F |
2 to 7 mph
W
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
39°F |
1 to 7 mph
W
|
|
Wednesday
Oct 21
|
Mostly Sunny
|
59°F |
3 mph
W
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
40°F |
2 to 6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Valley.
Nearby forecast pages are not available for this location yet.