Grass Valley

Skagit County, California, United States

Current Weather

24°

Partly Cloudy

Feels Like: 25°

Min: 12°

Max: 27°

The next few hours will be partly cloudy, with today reaching 27°C and dropping to 18°C. The coming days will be hazy throughout the day.

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Upgrade Now

Hourly Forecast

26° 24° 22° 21° 20° 20° 20° 19° 19° 19° 18° 18° 19° 20° 22° 24° 25° 26° 27° 28° 28° 29° 29° 28° 28° 26° 25° 25° 24° 24° 23° 23° 23° 23° 24° 24° 24° 25° 27° 29° 31° 32° 32° 33° 33° 33° 33° 32°
14%
14%
26%
22%
19%
21%
37%
54%
54%
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
Today
Tomorrow
Thursday

Daylight Hours

05:42

Sunrise

20:24

Sunset

14 hours 41 minutes of sunlight today

Daily Forecast

Today

12°
27°

Wednesday

18°
29°

Thursday

23°
33°

Friday

23°
34°

Saturday

21°
31°

Sunday

19°
32°

Monday

21°
29°

Air Quality Data Available

Upgrade to access real-time air quality data for Grass Valley.

Upgrade Now

UV Index

Seek shade during midday
6 High
Low Extreme

Humidity

51% Comfortable
Low High
Powered by Airpult

Frequently asked questions about weather in Grass Valley

How warm does it get in Grass Valley?

The warmest month in Grass Valley is July, with average high temperatures of 34°C. The average temperature during this period is around 26°C.

How cold does it get in Grass Valley?

The coldest month in Grass Valley is December, with average low temperatures of 3°C. The average temperature during this period is around 7°C.

What is the wettest time of year in Grass Valley?

The wettest month in Grass Valley is January, with an average of 276mm of precipitation.

What is the driest time of year in Grass Valley?

The driest month in Grass Valley is July, with an average of 1mm of precipitation.

View full climate insights for Grass Valley →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)

Confirm