Blast Off Weekend With Leprechaun Party

When/Where: 11:30 a.m. Thursday to 1:30 a.m. Friday, , 208 Bachman Ave.

Why Go: If you can still get in, it will be the street party to end all street parties, the St. Patrick's Day celebration at the head of the list. The party will take place outside  on Bachman Avenue, which will be closed. The event features six music bands, bag pipers, Irish dancers and a feast of Irish treats. Oh, and beer and shots, of course.

Pricing: $50

When/Where: 8 p.m. Friday, , 20 University Ave.

Why Go:  The concert is part of  St. Luke's 2011 Sunset Concert Series. The program includes "Quintetssentials: String Quintet Gems Played by Boston’s Finest," featuring the Lydian String Quartet and cellist Rhonda Rider.

Pricing $25; less for children and seniors

When/Where: Noon to 5 p.m. Sunday, The Mountain Winery, 14831 Pierce Rd., Saratoga.

Why Go: Celebrate spring the Shakespearean way with entertainment of the times and food and drink of a similar vein. To be or not to be—to go or not to go. What do you think?

Pricing: $25 online, $30 at the door.

When/Where: 6-9:30 p.m. Friday, downtown Campbell

Why Go: Stroll through the downtown streets of Campbell and visit the art galleries there. It's the neighborly thing to do. 

Pricing: Free

When/Where: 1:30-3 p.m. Sunday, 110 E. Main St., Los Gatos Civic Center Lawn.

Why Go: Celebrate the official launch of the Los Gatos Library public fundraising campaign and meet former NASA astronaut Dr. Edward T. Lu. There will be a NASA jump house, a Lego building station, stomp rockets, music, food and more. Details: friendsoflglibrary.org.

Pricing: Free