5 Things You Need to Know Today: July 21

1) Tide Watch —  Beach walkers, dog walkers, swimmers and fishermen check this out. Today's low tide is at 10:04 a.m. (.70 ft.) and high tide is at 4:24 p.m. ( 8.93 ft.).  The sun rises at 5:24 a.m.

2) Weather Watch — The National Weather Service is calling for a sunny day with a high near 90. Excessive heat watch. Heat advisory: dangerous prolonged heat expected until Sunday.  Check out Swampscott's own local weather station data.

3) Massachusetts State Lottery Numbers:

The Numbers Game:

July 20: Midday: 6-2-4-7 Evening: 2-7-4-5

Cash Winfall: 1-25-30-36-38-39

4) Regatta Watch: The King of Clubs Regatta is Saturday in Swampscott Harbor. Swampscott, Nahant and Lynn boats will compete.

5) Today in Music History — In 1969, Duke Ellington performed Moon Maiden on TV one day after Neil Armstrong became the first man to walk on the moon. 

 (Information from On This Day.com)