I am trying to use the dark sky weather component as well as the sensor component and it worked for a day or so and then failed. Using the weather for lovelace UI and sensor for Tileboard.
I assumed that I would have issues with two components calling the API so I added in a
update_interval: ‘00:15:00’ for the sensor so it wouldn’t call too many times in a day.
Anyone see something wrong with this or a better way of doing what I’m trying to do?
I run 1 dark-sky weather component for one location and 2 different location (lat/long) sensors on mine with a 15 minute interval like you have stated and it works like a charm. I checked my account, I’m hitting about 700 hits per day which is within the free parameters. 
I’ve never checked my account for number of hits. That’s a good idea.
I tried again and I have been successfully running both for 2 days now…didn’t change anything from before except some monitored conditions. Maybe more conditions make more calls?
Anyway seems ok after a couple days.
I’ll update if it fails again.