Weather in Castaic, United States 🇺🇸
Weather Forecast in Castaic
In Castaic right now it is 26°C and clear, feeling like 26°C. Humidity is 36% with winds around 4 km/h, and the UV index is 0 (low). Across the coming days, Castaic should see roughly 18°C to 39°C. ⚠️ Small Craft Advisory issued July 20 at 8:36PM PDT until July 22 at 3:00AM PDT by NWS Los Angeles/Oxnard CA
Hourly Forecast for Castaic
14-Day Forecast for Castaic
Sunny
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Additional Forecasts for Castaic
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Best Time to Be Outside in Castaic Today
The most comfortable window in Castaic today looks like 20:00 to 20:00, when it is around 23°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Castaic
What is the temperature in Castaic right now?
Castaic is sitting at 26°C (78°F) right now, clear (feels like 26°C).
What's the weather like in Castaic right now?
Right now Castaic has Clear, humidity 36%, wind 4 km/h SSW.
What is today's forecast for Castaic?
Today in Castaic: high 34°C, low 20°C, sunny. Chance of rain: 1%.
What is the 7-day weather forecast for Castaic?
Daily highs and lows for Castaic:
- 2026-07-21: 34°C / 20°C
- 2026-07-22: 34°C / 18°C
- 2026-07-23: 39°C / 21°C
- 2026-07-24: 40°C / 23°C
- 2026-07-25: 40°C / 23°C
- 2026-07-26: 42°C / 24°C
- 2026-07-27: 41°C / 24°C
Is it going to rain in Castaic today?
There is a 1% chance of rain in Castaic today.
What is the wind speed in Castaic right now?
Wind in Castaic is currently 4 km/h (2 mph) from the SSW.
What is the UV index in Castaic right now?
The UV index in Castaic is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
