Weather forecast for tomorrowGrass Valley, CA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 79°F
- 54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 174°
- Humidity: 20%
- UV index: 5
- Sunrise: 7:17 am PDT
- Sunset: 6:21 pm PDT
- details ▼
Tomorrow, on Sunday, sunny and dry conditions are also anticipated.
The maximum forecasted temperature is a moderately hot 78.8°F, while the minimum temperature will be a crisp 53.6°F.
Tomorrow, the maximum temperature of 78.8°F will resemble September's climate more than October's.
Sunrise will be at 7:17 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 4min.
The maximum forecasted temperature is a moderately hot 78.8°F, while the minimum temperature will be a crisp 53.6°F.
Tomorrow, the maximum temperature of 78.8°F will resemble September's climate more than October's.
Sunrise will be at 7:17 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 4min.
Hourly overview
Hourly temperatures
Warmest period: 12 pm - 3 pm 77°C.
Minimum temperature: 63°C.
Minimum temperature: 63°C.
Chance of precipitation
Highest chance: 12 am - 9 pm 0%.
Hourly weather forecast
- 12 am
- 63°F
- Feels like:63°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphE 91°
- Humidity: 24%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 66°F
- Feels like:66°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphE 86°
- Humidity: 24%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 66°F
- Feels like:66°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphE 95°
- Humidity: 23%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphE 92°
- Humidity: 22%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:17 am
- 8 am
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphE 99°
- Humidity: 24%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSE 146°
- Humidity: 20%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 187°
- Humidity: 17%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphSSW 208°
- Humidity: 18%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphSSW 211°
- Humidity: 18%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 73°F
- Feels like:73°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSSW 197°
- Humidity: 23%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:21 pm
- 8 pm
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSE 127°
- Humidity: 33%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 63°F
- Feels like:63°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSE 135°
- Humidity: 35%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, sunshine is expected.
The temperature will be between the lowest temperature of 60.8°F and the highest temperature of 77°F. The warmest part of the day will be from noon to 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. The night temperature will be similar to the standard October low of 50.7°F.
The temperature will be between the lowest temperature of 60.8°F and the highest temperature of 77°F. The warmest part of the day will be from noon to 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. The night temperature will be similar to the standard October low of 50.7°F.
Updated: Oct 18, 2026 @ 04:31:06 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Grass Valley, clear and sunny conditions are expected.
Tomorrow, the highest temperature will be 78.8°F, while the lowest temperature will be 53.6°F.
The highest temperature tomorrow will be moderately higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The highest temperature tomorrow will be moderately higher than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Grass Valley, sunrise will be at 7:17 am and sunset at 6:21 pm (PDT).
Tomorrow, the daylight will last for 11h and 4min.
