Sacramento Music Festival is held each year in Old Sacramento, on Memorial Day weekend. The initial lineup has been announced and includes some of the performers from last year. Lineup can be seen here on the festival website: http://sacmusicfest.com/artists/
And the 2014 lineup and schedule for Concerts in the Park has been published, too. The lineup, which includes loads of local bands, is here: http://downtownsac.org/events/concerts-in-the-park/
And Aftershock have set dates and will announce lineup soon... http://aftershockconcert.com/
It's going to be a fun and musical outdoor summer in Sacramento!
(Sadly, there won't be a Sunrise at Night concert series this year. Hopefully it will be back in 2015.)