If you planning to travel to Sonoma County Fairgrounds, Santa Rosa, 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 2:39 PM. The temperature feels like 60.35 with a humidity level of 47 so dress accordingly. Cloud coverage is 2 percent with visibility at 14.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 8 MPH. At the end of the day don’t miss the sunset at 1:07 AM.