1. FORECAST: Today — Increasing clouds, with a high near 63; Tonight — A chance of showers, mainly after 8 p.m. Cloudy, with a low around 43.

2. MONSTERBASH RESCHEDULED: Join the annual Monsterbash Party at NARA Park on Sunday from 5:30-8 p.m. at NARA Park in Acton. Tickets are $3.

3. LEARN ABOUT SOCIAL MEDIA: If you've ever wanted to learn how to use Facebook, Twitter and other social media platforms for more than personal recreation, then come to the monthly Sudbury Social Tweetup on Thursday, from 6-8 p.m., at Bistro 20 in Sudbury. This gathering is for people with no or little experience, and for those with a wealth of knowledge.

4. WHAT TO CELEBRATE TODAY: Did you know today is National Mole Day and Tv Talk Show Host Day? Neither did I.

To thoroughly enjoy National Mole Day, one must first understand what a "Mole" in Chemistry is. A "mole" is a basic measuring unit. It equals the atomic mass of a single molecule. It is measured in grams. This measure was discovered by Italian Amadeo Avogadro. Chemistry teachers celebrate this day, by getting kids more interested in chemistry.

TV Talk Show Host Day celebrates and honors all TV talk show hosts. This very special day is celebrated on the birth date of legendary night time talk show host Johnny Carson. Carson is considered the "King of late night Television." He hosted The Tonight Show from 1962 to 1992. His reign lasted a record 29 years, 7 months, 21 days. There were 1,859 episodes.

While this day is celebrated on Johnny Carson's birth date, it is intended to show appreciation to all Television talk show hosts, daytime and nighttime.

5. THIS DAY IN HISTORY: 1923 - Babe Ruth makes a postseason exhibition appearance in a Giants uniform; 1941 - Walt Disney's "Dumbo" released; 1956 - 1st video recording on magnetic tape televised coast-to-coast; 1970 - Gary Gabelich sets auto speed record 622.4 mph; 1973 - Nixon agrees to turn over White House tape recordings to Judge Sirica; 2001 - Apple releases the iPod.