you need to set up the parameters for the template.

$template->param(ROWS=>$arrayReference);
[download]

The array reference is a list of hashes, so if you were to type this out logicaly it would look something like this

$arrayref->[0]->{day}=Monday
$arrayref->[0]->{type}=snow
$arrayref->[1]->{day}=Tuesday
$arrayref->[1]->{day}=rain
$arrayref->[2]->{day}=Wednesday
...
etc
[download]

Be sure to look at HTML::Template for some good examples and documentation.

As well take a look at perldsc for a tutorial on how to make arrays of hashes.