If I understand right your current logic is “events later than today” but you want to adjust it to “events today or later”.
This should be simple by adjusting comparison rule to from “more” to “more or equal”:
'meta_compare' => '>=',
If I understand right your current logic is “events later than today” but you want to adjust it to “events today or later”.
This should be simple by adjusting comparison rule to from “more” to “more or equal”:
'meta_compare' => '>=',