Five Things You Need to Know Today, Jan. 11

1. Weather: Expect a mostly sunny Wednesday with a potential for snow late night. High temperatures could reach 37, with an overnight low of 31.

2. Clinic today: The Arlington Health Department will hold a , Jan. 11, 12:30-2 p.m. The clinic will be held at the , 27 Maple St., in ground floor. Pre-registration and pre-screening are required. Eligibility and vaccine cost information can be found at arlingtonma.gov/health.

3. Christmas trees collection: Waste Management will collect Christmas trees in Arlington through Friday, Jan. 13. Trees in plastic bags will not be collected. No yard waste will be collected during this week. For more details, visit arlingtonma.gov/recycle.

4. MBTA sign up: The Arlington Council on Aging encourages all seniors ages 65 and older to apply for or renew their MBTA Charlie Card this coming January. This card entitles seniors to a reduced rate for all MBTA services. Applications and renewals will be processed on Tuesday, Jan. 17, 12:30 p.m.-2:30 p.m. at the , 27 Maple St.

5. This day in history: From History.com, "On January 11, 1908, U.S. President Theodore Roosevelt declares the massive Grand Canyon in northwestern Arizona a national monument."