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 2:26 PM. The temperature feels like 58.55 with a humidity level of 90 so dress accordingly. Cloud coverage is 90 percent with visibility at 6 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 8 MPH. At the end of the day don’t miss the sunset at 12:50 AM.