Grass Valley, CA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Grass Valley, CA in one place.
Showers and thunderstorms. Cloudy. High near 57, with temperatures falling to around 55 in the afternoon. South southwest wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
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: Apr 10, 2026 3:12 PM PDT.
The active forecast window currently covers Apr 10 to Apr 16, 2026 for Grass Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 3:12 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Grass Valley
Thursday looks like the warmest upcoming period in Grass Valley at 64 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Saturday at about 7 to 12 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 3:12 PM 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
Showers and thunderstorms before 5am, then rain likely. Mostly cloudy. Low around 44, with temperatures rising to around 47 overnight. South southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Rain before 11am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. High near 53, with temperatures falling to around 51 in the afternoon. South wind 7 to 12 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms before 11pm, then rain between 11pm and 5am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 37. South southeast wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Showers and thunderstorms. Cloudy, with a high near 47. South southeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 100%.
Showers and thunderstorms likely before 8pm, then rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
A slight chance of rain before 5pm. Partly sunny, with a high near 56.
Mostly clear, with a low around 38.
Sunny, with a high near 62.
Mostly clear, with a low around 40.
A slight chance of rain after 5pm. Mostly sunny, with a high near 63.
A slight chance of rain before 11pm. Partly cloudy, with a low around 42.
Sunny, with a high near 64.
Mostly clear, with a low around 41.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 10
|
Showers And Thunderstorms
|
57°F |
6 mph
SSW
|
|
Tonight
Apr 10
|
Showers And Thunderstorms
|
44°F |
7 mph
SSE
|
|
Saturday
Apr 11
|
Showers And Thunderstorms
|
53°F |
7 to 12 mph
S
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
37°F |
5 to 10 mph
SSE
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
47°F |
5 to 9 mph
SSE
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely then Light Rain Likely
|
37°F |
2 to 6 mph
SE
|
|
Monday
Apr 13
|
Slight Chance Light Rain
|
56°F |
5 mph
SW
|
|
Monday Night
Apr 13
|
Mostly Clear
|
38°F |
3 mph
NE
|
|
Tuesday
Apr 14
|
Sunny
|
62°F |
5 mph
NNW
|
|
Tuesday Night
Apr 14
|
Mostly Clear
|
40°F |
5 mph
SE
|
|
Wednesday
Apr 15
|
Mostly Sunny then Slight Chance Light Rain
|
63°F |
2 to 6 mph
SE
|
|
Wednesday Night
Apr 15
|
Slight Chance Light Rain then Partly Cloudy
|
42°F |
5 mph
SE
|
|
Thursday
Apr 16
|
Sunny
|
64°F |
2 to 6 mph
NNW
|
|
Thursday Night
Apr 16
|
Mostly Clear
|
41°F |
5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grass Valley.
