Grass Valley, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Valley, CA in one place.
Sunny. High near 87, with temperatures falling to around 85 in the afternoon. East northeast wind 2 to 7 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Grass Valley, CA 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 10:41 AM PDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Grass Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 10:41 AM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Valley
Today looks like the warmest upcoming period in Grass Valley at 87 degrees F.
Monday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Tonight at about 3 to 10 mph ENE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 10:41 AM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KBBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear. Low around 61, with temperatures rising to around 64 overnight. East northeast wind 3 to 10 mph, with gusts as high as 24 mph.
Sunny. High near 85, with temperatures falling to around 81 in the afternoon. South southwest wind 2 to 10 mph, with gusts as high as 18 mph.
Clear, with a low around 54. East wind 2 to 6 mph.
Sunny, with a high near 82. Southwest wind 2 to 7 mph.
Clear, with a low around 54.
Sunny, with a high near 77.
Mostly clear, with a low around 50.
Sunny, with a high near 67.
A slight chance of rain after 11pm. Partly cloudy, with a low around 45.
A slight chance of rain. Mostly sunny, with a high near 65.
A slight chance of rain before 11pm. Partly cloudy, with a low around 46.
A slight chance of rain after 5pm. Mostly sunny, with a high near 66.
A chance of rain. Partly cloudy, with a low around 45.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 15
|
Sunny
|
87°F |
2 to 7 mph
ENE
|
|
Tonight
Oct 15
|
Clear
|
61°F |
3 to 10 mph
ENE
|
|
Friday
Oct 16
|
Sunny
|
85°F |
2 to 10 mph
SSW
|
|
Friday Night
Oct 16
|
Clear
|
54°F |
2 to 6 mph
E
|
|
Saturday
Oct 17
|
Sunny
|
82°F |
2 to 7 mph
SW
|
|
Saturday Night
Oct 17
|
Clear
|
54°F |
2 to 6 mph
E
|
|
Sunday
Oct 18
|
Sunny
|
77°F |
5 to 8 mph
SSE
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
50°F |
6 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
67°F |
6 mph
SSE
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain
|
45°F |
1 to 5 mph
ESE
|
|
Tuesday
Oct 20
|
Slight Chance Light Rain
|
65°F |
3 mph
WSW
|
|
Tuesday Night
Oct 20
|
Slight Chance Light Rain then Partly Cloudy
|
46°F |
5 mph
NE
|
|
Wednesday
Oct 21
|
Mostly Sunny then Slight Chance Light Rain
|
66°F |
5 mph
SW
|
|
Wednesday Night
Oct 21
|
Chance Light Rain
|
45°F |
5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Valley.
