Frank Browne's side were involved in an end to end classic against Wexford.
Westmeath missed out on a Leinster title by the smallest possible margin in Portlaoise yesterday.
Wexford were crowned the provincial intermediate ladies champions after beating the Lake County 0-15 to 1-11.
While Wexford led by two points at the break, Frank Browne's side surged back ahead thanks to an Ashley Ruane goal early in the second half after good work from Kelly Boyce-Jordan.
Back Wexford came, and a late Anna Jones point looked like it secured extra-time for Westmeath only for Aoife Cullen to slot the winner from a free for Wexford in the last minute of the game.
Keeping Up Unbeaten League Start The Aim For Athlone Town Women
Two Pointer Rule Makes Big Difference To Gaelic Football - Emmet McDonnell
Shane Lowry Records Opening Round Of 72
Tullamore Town FC Ready For Red Letter Weekend
Busy Bank Holiday Weekend In Store For Athlone Town
Big Weekend Ahead In Leinster Minor And U20 Hurling Championships
Leinster SFC: Opportunity Beckons For Westmeath
Westmeath Footballer Luke Loughlin Ruled Out For Remainder Of Season
Laois And Westmeath Battle For Place In Leinster LGFA Decider
Alex Dunne Set For Action In Miami This Weekend
Fundraising Walk Planned For Westmeath Man Left Paralysed In Freak Accident
Shane Lowry In Action In Miami This Week
Westmeath Secure Leinster Minor Football Quarter Final
CCFL: Two Draws In Senior Division
Potential Hometown Fight On The Cards For Joe Ward
Ava O'Connor Breaks Personal Steeplechase Record
Laois Fixture In Two Weeks A "Massive Game" - Kevin O'Brien
Camross Camogie Honoured In Laois Following Historic All-Ireland Triumph
Athlone Town Secure Vital Win In Women's Premier Division
Laois And Westmeath To Clash In Leinster Camogie Decider