Strange that you don't have Google Search on your computer. I simply entered WXtoIMG as the search criteria and the top item that popped that popped up on the search results page was?
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Clicking on the link I see Downloads as one of the menu selections. I click on it.
Since the Raspberry Pi uses an ARM cpu I notice at the top of the page a Beta version 2.11.2 for running Linux on ARM processors.
