With version 4.3 you no longer need your own weather API key from Openweathermap.org.
Settings: Select time format, and option to hide temperature/location display and change colors.
Temperature and location rely on your phone and you may need to sync to update the readings. I cannot guarantee accuracy of temperature readings, or location information.
The app requires permission to access your preferences, user-activity, heart-rate sensor, location and internet, and to run in background.
Free 48 hour trial period, and you can purchase a code to validate your license for only $1.10 USD. (Plus applicable taxes for your region) Payments are via k-pay.io, anytime during the trial, via the settings in the fitbit app. K-Pay accepts PayPal or Credit Card (Surcharge for credit card)