Castaic, CA Weather Forecast

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Castaic, CA Weather Forecast

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Castaic CA weather  - Clear - 57°F
Clear
57°F
Updated 2:32 am
Feels Like 63°F
Humidity 66%
Wind NW 12 mph
Barometer  30.04 in
Dew Point 46°F
Castaic CA weather  - Clear - 14°C
Clear
14°C
Updated 2:32 am
Feels Like 17°C
Humidity 66%
Wind NW 19 km/h
Barometer  101.7 kPa
Dew Point 8°C

Castaic Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY
Castaic, CA Weather - Tonight Mostly Clear Castaic, CA Weather - Tuesday Sunny Castaic, CA Weather - Tuesday Night Clear Castaic, CA Weather - Wednesday Sunny Castaic, CA Weather - Wednesday Night Clear Castaic, CA Weather - Thursday Sunny Castaic, CA Weather - Thursday Night Clear Castaic, CA Weather - Friday Sunny Castaic, CA Weather - Friday Night Mostly Clear Castaic, CA Weather - Saturday Sunny Castaic, CA Weather - Saturday Night Mostly Clear Castaic, CA Weather - Sunday Sunny
Mostly Clear Sunny Clear Sunny Clear Sunny Clear Sunny Mostly Clear Sunny Mostly Clear Sunny
Lo: 50°FLo: 10°C Hi: 81°FHi: 27°C
Lo: 56°FLo: 13°C Hi: 93°FHi: 34°C
Lo: 65°FLo: 18°C Hi: 90°FHi: 32°C
Lo: 63°FLo: 17°C Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C Hi: 86°FHi: 30°C
Lo: 60°FLo: 16°C Hi: 81°FHi: 27°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1129 PM PDT Mon Sep 21 2026 Castaic, CA Weather - WeatherWorld.com

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Issued: 1108 PM PDT Mon Sep 21 2026

Aviation

...22/0603Z.

At 0508Z at KLAX, the marine layer was 3500 ft deep. The top of the inversion was at 4500 feet with a temperature of 15 C.

High confidence in VFR conds for KPMD & KWJF.

Good confidence in TAFs for KSBP and KSMX with VFR transition to occur with in an hour of fcst time.

Good confidence in TAFs for KSBA, KBUR and KVNY with a 15 percent chc of MVFR cigs 12Z-17Z.

Fair confidence in TAFs for KOXR and KCMA with a 25 percent chc of MVFR cigs 11Z-17Z.

Moderate confidence in TAFs for KSMO,...