Weather forecast for 10 daysAlta Sierra, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 81°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 171°
  • Humidity: 21%
  • UV index: 5
  • Sunrise: 7:17 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
On Sunday, in Alta Sierra, bright and sunny weather is expected.
A substantial temperature fluctuation from a temperate 80.6°F at its peak to a crisp 53.6°F at its lowest point is anticipated.
Today, temperatures will feel warmer with a high of 80.6°F, more typical for September than for October.
Sunrise will be at 7:17 am and sunset at 6:21 pm; the daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest day: today 81°C.
Minimum temperature: 59°C.

Chance of precipitation

Highest chance: Thursday 53%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 81°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 171°
  • Humidity: 21%
  • UV index: 5
  • Sunrise: 7:17 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphS 179°
  • Humidity: 34%
  • UV index: 4
  • Sunrise: 7:18 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 57°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphSW 222°
  • Humidity: 39%
  • UV index: 3
  • Sunrise: 7:19 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 54°F
PM Showers
PM Showers
  • Precip. probability: 37%
  • Precipitation: 0.04"
  • Wind: 5mphS 189°
  • Humidity: 55%
  • UV index: 2
  • Sunrise: 7:20 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 52°F
Showers
Showers
  • Precip. probability: 53%
  • Precipitation: 0.24"
  • Wind: 6mphSSW 209°
  • Humidity: 70%
  • UV index: 4
  • Sunrise: 7:21 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0.2"
  • Wind: 6mphNW 322°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:22 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 66°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphS 191°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:23 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 48°F
Showers
Showers
  • Precip. probability: 39%
  • Precipitation: 0"
  • Wind: 7mphSSW 197°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 61°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0.16"
  • Wind: 6mphSW 226°
  • Humidity: 45%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 63°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 6mphSSW 208°
  • Humidity: 42%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
Looking ahead, conditions suggest a period of sun-filled, overcast and rain-soaked weather is predicted.
Rain is anticipated on Wednesday through Friday and next Monday.
Substantial differences in temperature are forecasted in the upcoming period. Maximum temperatures are forecasted between 59°F and 80.6°F, while the lowest temperature will be between 48.2°F and 57.2°F.
With a high of 80.6°F, today is the warmest day; the coldest days will be Thursday and next Sunday, with a maximum of 59°F.
Updated: Oct 18, 2026 @ 09:51:09 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, conditions remain stable and sunny, with little cloud presence.

Today, the maximum temperature in Alta Sierra, California, will be 80.6°F, while the minimum temperature will be 53.6°F.
The highest temperature today will be slightly warmer than the average maximum temperature in October. Today, the lowest temperature will be in line with the average low temperature.

On Sunday, in Alta Sierra, sunrise will be at 7:17 am and sunset at 6:21 pm (PDT).

In Alta Sierra, the length of the day today will be 11h and 4min.