I've built this driver to pull Acurite Weather Station data without needing to go through Wunderground or another third-party integration. It does not pull data off the wire, but instead uses the JSON data that drives the My Acurite dashboard, so you'll need AcuRite Access to upload your data. All available data points (at least that my device is capable of) are exposed by the driver. In addition to your username and password, you will need your Device ID. You can find that using the instructions here:
I recommend not adjusting the default 5 minute polling value as the dashboard itself only updates every 5 minutes.