Weather forecast for tomorrowGrass Valley, OR
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 61°F
- 39°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 11mphENE 58°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:23 am PDT
- Sunset: 6:12 pm PDT
- details ▼
On Sunday, in Grass Valley, sunshine will take center stage, with just faint traces of clouds.
Temperatures will oscillate between a breezy 60.8°F at their highest and a wintry 39.2°F at their lowest.
Tomorrow, the anticipated peak temperature is expected to mirror October's average high of 58.8°F.
Sunrise will be at 7:23 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 49min.
Temperatures will oscillate between a breezy 60.8°F at their highest and a wintry 39.2°F at their lowest.
Tomorrow, the anticipated peak temperature is expected to mirror October's average high of 58.8°F.
Sunrise will be at 7:23 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 49min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphWNW 303°
- Humidity: 75%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:37°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphWSW 245°
- Humidity: 81%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphWSW 238°
- Humidity: 83%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:34°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphSSE 158°
- Humidity: 86%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:23 am
- 8 am
- 34°F
- Feels like:34°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphSE 130°
- Humidity: 90%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 46°F
- Feels like:46°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 1°
- Humidity: 63%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 54°F
- Feels like:52°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNE 37°
- Humidity: 46%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 59°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNE 51°
- Humidity: 38%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphNE 55°
- Humidity: 34%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 55°F
- Feels like:54°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNE 56°
- Humidity: 36%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:12 pm
- 8 pm
- 48°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphENE 63°
- Humidity: 47%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:41°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphENE 61°
- Humidity: 55%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of mostly clear and cloudy weather is predicted.
The temperature will vary between a minimum of 33.8°F and a maximum of 59°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the forecasted high aligns alike with the average peak in October. Tomorrow, the low will be also relatively lower than the usual October value of 43.7°F.
The temperature will vary between a minimum of 33.8°F and a maximum of 59°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the forecasted high aligns alike with the average peak in October. Tomorrow, the low will be also relatively lower than the usual October value of 43.7°F.
Updated: Oct 17, 2026 @ 23:10:38 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, sunny intervals will be long-lasting, with few disruptions.
Tomorrow, the maximum temperature in Grass Valley will be 60.8°F, while the minimum temperature will be 39.2°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be moderately lower than the average low temperature.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be moderately lower than the average low temperature.
On Sunday, in Grass Valley, sunrise will be at 7:23 am and sunset at 6:12 pm (PDT).
Tomorrow, the daylight will last for 10h and 49min.
