It depends what you mean by "view my PWS". If your PWS has the ability to collect data and send it to the internet (like using Wunderground.com) then yes. Or if your PWS is connected to a computer you can use Team Viewer on your computer (free Host version) and the Team Viewer app on your phone to log into that computer remotely from anywhere you receive data service on your phone.
Bottom line here is that your PWS has to have some way of getting the data out of it and there are a number of ways that could happen depending on the brand and model of your PWS. So let's start there.
What brand and model is your PWS?