Alta Sierra is a city of approximately 7,000 people in California, United States. Located in the Pacific Time Zone at 35.7°N latitude.
In 2025, Alta Sierra recorded an average annual temperature of 50°F. The hottest temperatures reached 88°F in August; the coolest were 11°F in March. Total precipitation for the year was 25 inches, with the wettest month being March. Snowfall for the year totaled approximately 24 inches.
View current conditions and forecast for Alta Sierra · More cities in California