$current_month = date( 'n' ); // 1-12
$current_day   = date( 'j' ); // 1-31
$next_month = date('n', strtotime('next month'));
$day_span = 28 - $current_day;

$args_birthday_current = [
'role__in' => ['subscriber'],
//'order' => 'ASC',
'orderby' => ['birth_day' =>'ASC', /*'birth_month' =>'ASC'*/],
'meta_query' => array(

    'relation'  => 'OR',

    array( 'relation'  => 'AND',

        'birth_month' => array(
            'key'       => 'birth_date_month',
            'value'     => $current_month,
            'compare'   => '=',
        ),

        'birth_day' => array(
            'key'       => 'birth_date_day',
            'value'     => $current_day,
            'compare'   => '>=',
        ),

    ),

    array( 'relation'  => 'AND',

        'next_month' => array(
            'key'       => 'birth_date_month',
            'value'     => $next_month,
            'compare'   => '=',
        ),

        'day_span' => array(
            'key'       => 'birth_date_day',
            'value'     => $day_span,
            'compare'   => '>=',
        ),

    ),
),
];

foreach ( $user_query->get_results() as $user ) {

    $birth_date_month_number = get_user_meta($user->ID, 'birth_date_month', true);
    $birth_date_day_number = get_user_meta($user->ID, 'birth_date_day', true);
    $birthday = date('F jS', mktime(0, 0, 0, $birth_date_month_number, $birth_date_day_number, 0));

    $user_id = "user_".$user->ID;
    $badge = get_field('user_profile_photo', $user_id);
    echo '<a class="profile-link" href="profile-page/user/index.php?user=' . $user->last_name . '"><div>';
    echo '<div class="thumbnail-wrapper"><img class="img-fluid small-thumb" src="' . $badge['sizes']['thumbnail'] . '" alt="' . $badge['alt'] . '" /></div>';
    echo '<div class="profile-wrapper">' . $user->first_name . ' ' . $user->last_name . '<br>' . $birthday . '</div>';
    echo '</div></a>';
}