You can access the forecast from any 3 devices (the system looks at your IP address) in a 6hr period. For example you can look at the forecast at your home PC, then work PC, and Mobile.
If you try to access from a 4th device (or 4 IP addresses) within a 6hr period you will be logged off the forecast site and your password changed. The new password will be displayed on the website for the 4th device, so that you can continue to access the forecasts. This is to prevent users abusing the system and passing on their username and password. Please note our Terms and Conditions state the license granted is solely for your own personal use.
Note: The process is refreshed every 6 hours, so you can logon from unlimited devices, so long as you respect the 3 logons within a 6hour period.