If you planning to travel to California State University-Northridge, Simi Valley, 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 2:52 PM. The temperature feels like 45.1 with a humidity level of 79 so dress accordingly. Cloud coverage is 81 percent with visibility at 11.9 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 5 MPH. At the end of the day don’t miss the sunset at 1:22 AM.