WP Query for events posts with upcoming dates

.php

<?php 
$current_date = date(Ymd);
$event_args = array(
  'post_type' => 'event_post_type',
  'meta_query' => array(
    array(
      'key'     => 'date_field',
      'value'   => $current_date, 
      'compare' => '>='
    )
  ),
);
$events = new WP_Query( $event_args );
// do query loop stuff
?>