Sorry about that. I forget it's not a core module. Try this.

use WWW::Mechanize;
use Data::Dumper;
$Data::Dumper::Terse = 1;
my $mech = WWW::Mechanize->new();

$mech->get( "http://bub2.meteo.psu.edu/wxstn/wxstn.htm" );
print Dumper($mech->forms);
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