Five Things You Need to Know Today, July 19

Happy Monday, Arlington! Here are five things you need to know today:

1. Weather: Expect a sunny and warm Tuesday. High temperatures could reach 88 degrees with an overnight low of 65 degrees.

2. Right turn only: Starting last Friday, the entry onto Massachusetts Avenue from Water Street and Peg Spengler Way at  has become right turn only to improve safety around the library. Some parking will also be limited on Massachusetts Avenue by the library entrance. These changes will be part of a six-month trial period.

3. Patch Picks: Each week, Arlington Patch highlights editor and reader picks of great local businesses, destinations, services, organizations, ways to spend a day off, and more in our Thursday feature called . This week, we want to know from you—?

4. For the troops: Barrett & Company Real Estate is  for Operation American Soldier. Small plastic jars can be dropped off at the Barrett & Company offices in Concord, Lincoln and Carlisle Centers.

5. This day in history: From History.com, "On this day in 1799, during Napoleon Bonaparte's Egyptian campaign, a French soldier discovers a black basalt slab inscribed with ancient writing near the town of Rosetta, about 35 miles north of Alexandria.