August 31, 2015; 3:10 AM ET
The San Francisco area will have dry and seasonable conditions throughout the week. more >
Nice with some clouds, then sunshine
Mainly clear early, then areas of low clouds forming
Rises at 6:37 AM with 13:04 of sunlight, then sets at 7:41 PM
Rises at 9:04 PM with 12:59 of moolight, then sets at 10:03 AM
Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.