it looks like the wifi in that weather station is receive-only - it pulls forecasts from the us nws. if the station *sends* data, for example to weather underground, then you can use the weewx-interceptor extension to capture the data. if the station has a usb or other communication port, then it might be possible to pull data using that interface.
otherwise, your only option would be to purchase a usb sdr dongle and use the weewx-sdr extension to capture data from the wind and temperature sensors directly.
here is a guide for how to do it with acurite sensors:
the process is the same for lacross sensors
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