There seems to be icon problem for meecast, contour and some other iconsets in at least 0.5.8 and 0.5.9 versions; with half cloudy and light rain at the same time, some iconsets shows cloud with five droplets indicating heavy rain and no sun at all.

Glance and Grzankas iconset show it more correctly with sun behind the rain and clouds.

Also at least in version 0.5.8 there seemed to be 'no data' icon for possibly all iconsets with 'partly cloudy and thunder'. Foreca Helsinki was the source. The weather showed ok on the foreca.mobi site.

Also a suggestion: option to keep standby screen widget all white if the meecast theming just has it readable enough.