Weather World
Castaic Dam, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Castaic Dam, CA Weather Forecast
Castaic Dam, CA Weather Forecast Date: 543 AM PDT Fri Oct 02 2026
The area/counties/county of: Santa Clarita Valley, including: Lake Castaic, Newhall, Santa Clarita, and Valencia.or toggle through each period.
Today... Sunny. Highs 99 to 105.
Tonight... Mostly clear in the evening then partly cloudy. Lows in the upper 50s and 60s except the lower to mid 70s in the hills.
Saturday... Sunny. Highs 99 to 103.
Saturday Night... Clear. Lows in the upper 50s and 60s except the lower to mid 70s in the hills.
Sunday... Sunny. Highs 96 to 100.
Sunday Night... Clear. Lows around 70.
Monday... Sunny. Highs 95 to 100.
Monday Night... Clear. Lows around 70.
Tuesday... Sunny. Highs 96 to 100.
Tuesday Night... Clear. Lows around 70.
Wednesday... Sunny. Highs 98 to 102.
Wednesday Night... Clear. Lows around 70.
POP = Probability of Precipitation
Castaic Dam Radar Loop
Use the map search tool if you want to place a location marker on the radar map...