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It seems likely. (The likely event or occurrence is stated after "are.") Chances are that my parents are throwing me a surprise party. Why else would they change the subject every time I mention my birthday? Bring an umbrella with you because chances are it's going to rain today.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
the likelihood is (followed by a clause stating what is likely). Chances are that she would have been late even if she had left on time.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
(the) chances ˈare (that)(informal) it is likely (that): The chances are that he’ll come if he can finish work on time.
Farlex Partner Idioms Dictionary © Farlex 2017