Rain is on the way to SF Bay Area, but will it help? FacebookTwitterEmail Rain is on the way to the Bay Area this weekend.Christine Sarkis The San Francisco Bay Area is expected to see the first widespread rain event of April this weekend, but experts say it won't make up for a water shortage left by two consecutive winters of below-average rainfall. The system dropping down from the Pacific Northwest could arrive as early as Saturday night, but the best chance for showers is Sunday morning after sunrise and into the afternoon and evening. Light, scattered rain could linger into Monday before the storm exits the region.