You can use http://ifttt.com to automatically create tasks. For example, set the recipe with weather as the"trigger" and then set it so that it would send a gmail to your Remember the Milk inbox address. Now every day at a set time, tomorrow's weather forecast will be sent to your list with the due date as tomorrow, conditions as the title and the highest and lowest temperatures in a note (it is like this automatically but you can change that).

You can also change the "trigger" part to receive notifications of new blog posts (use the feed trigger), twitter or facebook posts, instagram updates or anything like that to save the trouble of visiting all those websites.