Update: Some offers mentioned below are no longer available. View the current offers here.Starbucks is having another buy-one-get-one-free ‘Happy Hour’ promotion, this time for an extra iced beverage with your purchase after 3pm today, June 27. And with temperatures reaching the low 90s in some parts of the country this afternoon, what’s a better way to beat oppressively high summer temperatures than downing a free, ice-cold drink?To redeem your free drink, all you have to do is download the Starbucks app to your smartphone, and the Happy Hour offer should be waiting for you in the in-app inbox. Then, you’re free to get an additional iced coffee, frappuccino, iced tea and a myriad of other cold beverages to help you beat the afternoon heat.https://www.instagram.com/p/BzIcfeDHlRd/As always, any Starbucks purchase is a good opportunity to maximize your spending — even if you’re getting one drink free. So, make sure you’re enrolled in the Starbucks rewards program before you head to your nearest store. This will help you collect stars that you can eventually redeem for a totally free drink, as well as keep up to date on future Happy Hour promotions.Lastly, you might want to use your American Express® Gold Card or Citi Prestige Card to optimize on dining points. Learn more about which credit cards are best for Starbucks purchases here.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.