Weather forecast for tomorrowCastaic, CA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 86°F
- 57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphENE 70°
- Humidity: 25%
- UV index: 6
- Sunrise: 7:02 am PDT
- Sunset: 6:16 pm PDT
- details ▼
Tomorrow, in Castaic, skies will stay clear and sunny.
A substantial temperature fluctuation from a humid 86°F at its peak to a refreshing 57.2°F at its lowest point is predicted.
Tomorrow, the maximum temperature of 86°F will resemble September's climate more than October's.
Sunrise will be at 7:02 am and sunset at 6:16 pm; tomorrow's daylight will last for 11h and 14min.
A substantial temperature fluctuation from a humid 86°F at its peak to a refreshing 57.2°F at its lowest point is predicted.
Tomorrow, the maximum temperature of 86°F will resemble September's climate more than October's.
Sunrise will be at 7:02 am and sunset at 6:16 pm; tomorrow's daylight will last for 11h and 14min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 84°C.
Coldest hour: 6 am 61°C.
Coldest hour: 6 am 61°C.
Chance of precipitation
Highest chance: 12 am - 9 pm 0%.
Hourly weather forecast
- 12 am
- 66°F
- Feels like:66°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphN 5°
- Humidity: 33%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 64°F
- Feels like:64°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphN 359°
- Humidity: 36%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 63°F
- Feels like:63°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNNE 13°
- Humidity: 38%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNE 18°
- Humidity: 39%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:02 am
- 8 am
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphNNE 22°
- Humidity: 36%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphNE 56°
- Humidity: 25%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 81°F
- Feels like:81°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphENE 61°
- Humidity: 19%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 2 pm
- 84°F
- Feels like:84°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphENE 76°
- Humidity: 17%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 4 pm
- 82°F
- Feels like:82°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSW 219°
- Humidity: 20%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 6 pm
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 212°
- Humidity: 28%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:16 pm
- 8 pm
- 70°F
- Feels like:70°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 310°
- Humidity: 38%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 66°F
- Feels like:66°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphN 6°
- Humidity: 41%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of sun-filled and cloudy weather is predicted.
The temperature will vary between the lowest temperature of 60.8°F and the highest temperature of 84.2°F. The hottest part of the day will be at 2 pm and 3 pm.
Tomorrow, the temperature will be closer to September's norm than to October's average of 76.6°F. The minimum temperature will be comparable to October's average low of 55.8°F.
The temperature will vary between the lowest temperature of 60.8°F and the highest temperature of 84.2°F. The hottest part of the day will be at 2 pm and 3 pm.
Tomorrow, the temperature will be closer to September's norm than to October's average of 76.6°F. The minimum temperature will be comparable to October's average low of 55.8°F.
Updated: Oct 17, 2026 @ 17:00:53 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
On Sunday, sunny and dry conditions are anticipated.
Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 57.2°F.
The highest temperature tomorrow will be uncommonly higher than the average maximum of 76.6°F in October. The lowest temperature will be in line with the average low of 55.8°F.
The highest temperature tomorrow will be uncommonly higher than the average maximum of 76.6°F in October. The lowest temperature will be in line with the average low of 55.8°F.
On Sunday, in Castaic, sunrise will be at 7:02 am and sunset at 6:16 pm (PDT).
In Castaic, tomorrow, there will be 11h and 14min of daylight.
