Weather forecast for 10 daysIsland Mountain, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSW 236°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:30 pm PDT
  • ▼
Today, in Island Mountain, clear skies and sunshine are anticipated.
Dramatic changes in temperature are forecasted, reaching a high of a delightful 68°F and falling to a low of a wintry 37.4°F.
The forecasted maximum temperature will be a few degrees higher than October's typical high of 63.9°F.
Sunrise will be at 7:27 am and sunset at 6:30 pm; the daylight will last for 11h and 2min.

10-day overview

Daily temperatures

Warmest day: today 68°C.
Coldest day: Sunday 25.10. 54°C.

Chance of precipitation

Highest chance: Sunday 25.10. 34%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 68°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSW 236°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:30 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 55°F
  • 37°F
Cloudy
Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 7mphW 265°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 37°F
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 8mphSW 235°
  • Humidity: 57%
  • UV index: 2
  • Sunrise: 7:30 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 7mphSW 228°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphWSW 252°
  • Humidity: 77%
  • UV index: 4
  • Sunrise: 7:32 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 32°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 9mphWNW 289°
  • Humidity: 67%
  • UV index: 4
  • Sunrise: 7:33 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.2"
  • Wind: 9mphSW 229°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:34 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 54°F
  • 30°F
AM Showers
AM Showers
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Wind: 8mphSW 223°
  • Humidity: 65%
  • UV index: 4
  • Sunrise: 7:35 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 9mphWSW 252°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:36 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 57°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphSW 228°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 7:37 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
Weather fluctuations are likely over the next ten days, and a combination of primarily gloomy and occasionally sun-filled, fog-covered and rain-filled weather is forecasted.
Rainfall is forecasted for Saturday and next Sunday.
There will be a considerable variation in temperature in the upcoming days. Forecast highs will fluctuate between 53.6°F and 68°F, while nighttime temperatures are expected to vary from 30.2°F to 39.2°F.
The warmest day is today, with a maximum temperature of 68°F; expect the coldest day on next Sunday with a high of 53.6°F.
Updated: Oct 18, 2026 @ 11:51:03 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunny and dry conditions are anticipated.

Today, the maximum temperature will be 68°F, while the minimum temperature will be 37.4°F.
Today, the highest temperature will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be uncommonly lower than the average low of 51.3°F.

On Sunday, in Island Mountain, sunrise will be at 7:27 am and sunset at 6:30 pm (PDT).

In Island Mountain, the length of the day today will be 11h and 2min.