5 Things You Need to Know Today, April 16

Editor's note: We just received word the "Crafter's Night" originally listed below at the Presbyterian Church is actually happening this Friday. 

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 feature in the comments section.

Today is Monday, April 16. Here are 5 things you need to know:

• First hot day: Looks like we'll be getting the first real taste of summer today. According to the National Weather Service we can expect sunny skies with a high near 88 degrees. Clear tonight with a low around 61. 

• Closings: Today is Patriot's Day in Massachusetts. All non-emergency state and town offices will be closed today, including Burlington , the and the .

• Marathon coverage: Patch sites from around the state are working together today to bring readers comprehensive coverage of the Boston Marathon with a . The post goes up at 9 a.m. so check in with Patch to stay up on all the race action. 

• Psychedelic, man: On this day in 1943, a Swiss chemist accidentally ingests LSD and learns of its hallucinogenic side effects. Albert Hoffman had originally created LSD as part of his research. But after taking the drug twice, he noted that it created a “not unpleasant, intoxicated-like state.” Hoffman said he saw “fantastic pictures” and an “intense, kaleidoscopic play of colors.” LSC became a popular recreational drug in the 60s, but was deemed illegal in 1965.