try this
in the .oww_setup file
logform $trhc1%3.2$ , $rh1%3.2$ , $dp1%3.2$ , $bar1%4.2$ , $wsp%3.2$ , $wdrdeg%3.2$ , $rain%3.2$
and
logvar /home/weather/test.txt (these are my current settings/file name change to suit)
this is a Howto I created
http://discourse.weather-watch.com/t/10561
Steve