For a more specific answer you can go directly to the following link on the Metro North website:
Trust me. My husband is a train conductor for Metro North and we live off the New Haven line in Westchester County.
Just click on any station in Westchester County and the station information will appear including parking.
Are you parking for the weekend? Port Chester, Rye, Harrison, Mamaroneck, Larchmont, Pelham and Mount Vernon East all have FREE parking for weekends and holidays. New Rochelle does not as they also service Amtrak at this stop.
Remember to purchase your ticket before you get on the train at either a ticket window or a ticket machine as the conductors will charge a surcharge above the regularly priced ticket.
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