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 12:49 PM. The temperature feels like 69.45 with a humidity level of 34 so dress accordingly. Cloud coverage is 6 percent with visibility at 10.6 percent. Today’s UV index is 11, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 2:51 AM.