been looking for an alternative weather applet but they all seem broken except this one:
package: my-weather-indicator
in this ppa:
https://launchpad.net/~atareao/+archive/atareaoafter installing the ppa (sudo add-apt-repository ppa:atareao/atareao)
and installing the package (sudo apt-get my-weather-indicator)
can run with command: my-weather-indicator
will then get a weather icon in the xfce indicator plugin in the panel.
click on the icon > preferences and set you location,
set the service to world weather online
and set your units
and the icon
and check autostart
click the applet and select forecast for 5 day weather
seems to work well so far and also seems like it is under active development