Monarch butterfly migration
10 a.m. to 4 p.m.
Adult movie in the library
“Light Between Oceans.” Popcorn will be provided. Morro Bay Library, 625 Harbor St., Morro Bay. Free. 805-772-6394.
Pajama party with author Lee White
6 to 7:30 p.m.
Children’s author Lee White will read from her books “The Family Read-Together Night” and “Double Crossings.” Popcorn, hot cocoa, cookies and cider will be served. Hosted by Foundation for SLO County Public Libraries. Atascadero Library, 6555 Capistrano Ave., Atascadero. Free. 805-546-1392.
By The Sea Productions presents “On Golden Pond”
7 to 9:30 p.m.
The story of Norman and Ethel Thayer, married for many years, who must face growing older together. St. Peter’s-by-the-Sea Episcopal Church, 545 Shasta Ave, Morro Bay. $20. 805-776-3287.
For a complete list of events, visit events.sanluisobispo.com.