Weather forecast for tomorrowIsland Mountain, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 55°F
- 37°F
Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 7mphW 265°
- Humidity: 71%
- UV index: 2
- Sunrise: 7:29 am PDT
- Sunset: 6:28 pm PDT
- details ▼
Tomorrow, on Monday, widespread cloud cover is expected.
Temperatures are anticipated to peak at a moderate 55.4°F and drop to a minimum of a cold 37.4°F.
An unusual colder pattern is expected, as the day’s high matches November's typical max of 57.6°F.
Sunrise will be at 7:29 am and sunset at 6:28 pm; tomorrow's daylight will last for 10h and 59min.
Temperatures are anticipated to peak at a moderate 55.4°F and drop to a minimum of a cold 37.4°F.
An unusual colder pattern is expected, as the day’s high matches November's typical max of 57.6°F.
Sunrise will be at 7:29 am and sunset at 6:28 pm; tomorrow's daylight will last for 10h and 59min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 54°C.
Coldest period: 3 am - 9 am 39°C.
Coldest period: 3 am - 9 am 39°C.
Chance of precipitation
Highest chance: 12 am - 3 am 21%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:41°F
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 2mphW 266°
- Humidity: 91%
- Pressure: 30"Hg
- Visibility: 4mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 2mphSW 216°
- Humidity: 96%
- Pressure: 29.97"Hg
- Visibility: 2mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Mostly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 2mphW 261°
- Humidity: 98%
- Pressure: 29.97"Hg
- Visibility: 3mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:39°F
Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 2mphSSW 211°
- Humidity: 96%
- Pressure: 29.97"Hg
- Visibility: 2mi
- UV index: 0
- details ▼
Sunrise: 7:29 am
- 8 am
- 39°F
- Feels like:39°F
Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 2mphSSW 208°
- Humidity: 96%
- Pressure: 29.97"Hg
- Visibility: 4mi
- UV index: 0
- details ▼
- 10 am
- 41°F
- Feels like:41°F
Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 2mphWSW 245°
- Humidity: 94%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 46°F
- Feels like:46°F
Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphWNW 284°
- Humidity: 73%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 2 pm
- 52°F
- Feels like:50°F
Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphWNW 295°
- Humidity: 54%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 54°F
- Feels like:52°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphWNW 286°
- Humidity: 46%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 52°F
- Feels like:50°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphW 272°
- Humidity: 51%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:28 pm
- 8 pm
- 46°F
- Feels like:46°F
Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphW 270°
- Humidity: 66%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 43°F
- Feels like:43°F
Mostly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 1mphSSE 160°
- Humidity: 75%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, a combination of cloud-filled and sun-filled weather is forecasted.
The temperature will vary between a minimum of 39.2°F and a maximum of 53.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum is expected to resemble November's average high of 57.6°F rather than October's. The lowest temperature is also more in line with November's average minimum of 47.1°F than the usual minimum of 51.3°F in October.
The temperature will vary between a minimum of 39.2°F and a maximum of 53.6°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum is expected to resemble November's average high of 57.6°F rather than October's. The lowest temperature is also more in line with November's average minimum of 47.1°F than the usual minimum of 51.3°F in October.
Updated: Oct 18, 2026 @ 12:46:57 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
Tomorrow, in Island Mountain, gloomy weather with thick clouds is expected.
Tomorrow, the maximum temperature will be 55.4°F, while the minimum temperature will be 37.4°F.
The maximum temperature will be a few degrees lower than the average highest temperature of 63.9°F in October. The lowest temperature will be noticeably lower than the average low of 51.3°F.
The maximum temperature will be a few degrees lower than the average highest temperature of 63.9°F in October. The lowest temperature will be noticeably lower than the average low of 51.3°F.
On Monday, in Island Mountain, sunrise will be at 7:29 am and sunset at 6:28 pm (PDT).
In Island Mountain, tomorrow, there will be 10h and 59min of daylight.
