PHP8.1: Warning: foreach() argument must be of type array|object, null given in _weather_parse_forecast()

Problem/Motivation

I know 7.x is not supported anymore in this project, but I run a legacy site and I came across this warning after migrating the site to a server running PHP 8.1:

Warning: foreach() argument must be of type array|object, null given in _weather_parse_forecast() (line 219 of /docroot/sites/all/modules/contrib/weather/weather_parser.inc).

// Cycle through all forecasts and write them to the table.
  foreach ($fc->forecast->tabular->time as $time) {
    $forecast = array();
    $forecast['geoid'] = $meta['geoid'];
    $forecast['time_from'] = str_replace('T', ' ', (string) $time['from']);

It would be ideal to check if the $fc object is set and has all these properties.

Steps to reproduce

Not sure how to reproduce this, I just opened a page that has the weather widget.

Proposed resolution

Create a patch to check for $fc before passing it to the foreach

Remaining tasks

User interface changes

API changes

Data model changes