If you planning to travel to Castaic Lake, Castaic, California, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 2:59 PM. The temperature feels like 53.650000000000006 with a humidity level of 76 so dress accordingly. Cloud coverage is 97 percent with visibility at 4 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 3 MPH. At the end of the day don’t miss the sunset at 1:09 AM.