WordPress.org

1. Download the archive file and uncompress it.
2. Put the "wp-traveller" folder in "wp-content/plugins"
3. Enable in WordPress by visiting the "Plugins" menu and activating it.

Weather will appear on the edit post screens. If you set a location in WP Geo and fetch the weather for that location, the weather details (at the time of posting) will be shown at the bottom of your post.