Further to @arkisling 's post, I apologize for any confusion around the availability of weather features. Here’s the situation.
As of the launch of TPE Web 4 on July 2, the functionality of wx.photoephemeris.com was integrated directly into app.photoephemeris.com, where it is available via the Weather panel on the righthand side of the map:
You can access all the weather features from that panel.
My plan is to retire wx.photoephemeris.com in due course. Please use app.photoephemeris.com going forward.
Let me know if you have any questions or concerns.
Stephen