Worse than useless - inaccurate. Rainfall - inaccurate (check other sources); air quality - inaccurate (check all the other weather sites). They even post air quality warnings when the air quality is good. They have an allergy tracker calculator which leads one to believe that if you increase your a/c (lower the temperature), indoor humidity will rise, which of course is the opposite effect that a/c has on humidity. Emails to bring these items to their attention are useless. They do not respond and they do not take action.