Book Sale At Waltham Library on Friday

Take a look at what's happening in Waltham on Friday.

-Weather forecast - 77 degrees and sunny.

-The Waltham Public Library will hold its annual book sale at 6:30 p.m.

-The Charles River Museum will host a networking session for Waltham organizations at 9 a.m.

-Will Mayor Jeannette McCarthy seek reelection despite say she would not?

-The Waltham Public Library will host a children's play group at 11 a.m.