maybe you ask mrs. google the wrong questions...^^
I get answers:
https://www.google.de/search?q=%22Fine+Offset+Weather+Station+Reader%22+cpp&ie=utf-8&oe=utf-8&client=firefox-b&gfe_rd=cr&ei=yTdgV43zLO7R8gfTnJ3YBw
this own seems to fit your quest: an open source fowsr in cpp