While it’s always a good idea to save some cash toward the end of the month, Valve’s quarterly Steam sales make it very tempting to dip into those rainy day funds. Fortunately, knowing when these sales will occur has gotten easier over time, as Valve no longer keeps people guessing about the dates. The company regularly posts dates far in advance for its sales and promotional events, and the upcoming Steam Summer Sale 2026 will run from June 25 to…