I'm also having this problem. My working system displays the extended almanac ok, using WeeWX 3.5 on a Raspberry Pi (original) running Raspbian, with a FineOffset WH1080.
New test system running WeeWX 3.62 on a Raspberry Pi3 with latest Rasbpian and simulator doesn't display the extended almanac. DEB install in both cases. I got a lot of warning messages when I installed pyephem but the last one indicated installation was successful. It's not listed when I run *weewx_extension --list* Should it be? -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
