Five Things you Need to Know Today" is a Patch column that provides readers with essential, daily information at a glance. Check back later for more, and let us know what you think of the new feature in the comments section.

1. The weather will be sunny and in the 30s.

2. The Concord Orchestra has its concert at 8 p.m. at 51 Walden St.

3. The Council on Aging has a reception for retiring Director Mary Ann Mortenson from 3 to 5 p.m. today at 1276 Main Street.

4. The library has a preschool singalong with Ed Morgan at 10 a.m. and Movies at the Main at 7 p.m. featuring "Buddy," a Norwegian film.

5. The COA has a Lunch and Learn as an introduction to a two-week workshop on Jin Shin Jytsu, an ancient art of harmonizing the energy in the body. Sign up by calling 978 318 3020.