Castaic Dam, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Sun & Moon
Weather Quote O' the Day


Castaic Dam, CA Weather Forecast


Castaic Dam, CA Weather Forecast Date: 201 AM PDT Wed Aug 12 2026
The area/counties/county of: Santa Clarita Valley, including: Lake Castaic, Newhall, Santa Clarita, and Valencia.or toggle through each period.
Today... Mostly cloudy. Highs in the mid to upper 80s. Southwest winds 15 to 25 mph in the afternoon.
Tonight... Mostly cloudy in the evening then partly cloudy. Lows around 60. Southwest winds 10 to 20 mph in the evening.
Thursday... Areas of low clouds and fog in the morning then partly cloudy. Highs in the upper 70s to mid 80s. Southwest winds 10 to 20 mph in the afternoon.
Thursday Night... Partly cloudy. Lows in the mid 50s. Southwest winds 10 to 20 mph in the evening.
Friday... Partly cloudy in the morning then sunny. Highs in the upper 70s to mid 80s. Southwest winds 10 to 20 mph in the afternoon.
Friday Night... Clear. Lows in the mid 50s.
Saturday... Sunny. Highs in the mid to upper 80s.
Saturday Night... Clear. Lows around 60.
Sunday... Sunny. Highs in the mid 80s to around 90.
Sunday Night... Mostly clear. Lows in the lower 60s.
Monday... Partly cloudy in the morning then sunny. Highs around 90.
Monday Night... Partly cloudy in the evening then mostly clear. Lows in the lower 60s.
Weather World