If you planning to travel to Diamond Mountain Casino, Susanville, 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 3:23 PM. The temperature feels like 37.2 with a humidity level of 84 so dress accordingly. Cloud coverage is 59 percent with visibility at 9.1 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:40 AM.