WSJ subscribers will get the edition at no extra cost and it will be available from newsstands for $1.50.
Dow Jones, the WSJ's publisher, claims that it will be the only national newspaper to arrive at subscribers' homes early on Saturday morning.
Paul E Steiger, managing editor of the WSJ, said: "Our readers trust us to provide them with the same high-quality, analytical information on issues that affect their personal lives as well as their professional ones."
The UK's Financial Times has been published on a Saturday since the newspaper's origins in the 19th century.
The Wall Street Journal Europe and The Asian Wall Street Journal are moving from broadsheet to compact format on October 17.
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