Grass Valley, OR Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Valley, OR in one place.
Mostly sunny, with a high near 84. West wind 2 to 12 mph, with gusts as high as 21 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: Aug 15, 2026 10:55 PM PDT.
The active forecast window currently covers Aug 17 to Aug 22, 2026 for Grass Valley, OR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 17 to Aug 22, 2026
- Latest sync
- Aug 15, 2026 10:55 PM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Valley
Monday looks like the warmest upcoming period in Grass Valley at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 17 mph W.
The forecast from Aug 17 through Aug 22 stays mostly dry.
Forecast Details
- Last updated
- Aug 15, 2026 10:55 PM PDT
- Coverage
- 6 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
Partly cloudy, with a low around 57. West wind 7 to 12 mph, with gusts as high as 21 mph.
Sunny, with a high near 81.
Mostly clear, with a low around 53.
Sunny, with a high near 80.
Mostly clear, with a low around 54.
Sunny, with a high near 83.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 17
|
Mostly Sunny
|
84°F |
2 to 12 mph
W
|
|
Monday Night
Aug 17
|
Partly Cloudy
|
57°F |
7 to 12 mph
W
|
|
Tuesday
Aug 18
|
Sunny
|
81°F |
7 to 17 mph
W
|
|
Tuesday Night
Aug 18
|
Mostly Clear
|
53°F |
5 to 17 mph
W
|
|
Wednesday
Aug 19
|
Sunny
|
80°F |
5 to 13 mph
W
|
|
Wednesday Night
Aug 19
|
Mostly Clear
|
54°F |
3 to 13 mph
W
|
|
Thursday
Aug 20
|
Sunny
|
83°F |
3 to 9 mph
W
|
|
Thursday Night
Aug 20
|
Partly Cloudy
|
58°F |
3 to 9 mph
W
|
|
Friday
Aug 21
|
Mostly Sunny
|
83°F |
3 to 14 mph
W
|
|
Friday Night
Aug 21
|
Partly Cloudy
|
56°F |
6 to 14 mph
W
|
|
Saturday
Aug 22
|
Mostly Sunny
|
78°F |
6 to 15 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.