Weather applet using weather underground shows weird minimum temperature

Not the dew point. It is the 'feels like' temperature (wind chill / heat index).

There is something wrong with it though, feels like cannot be -6C at 22C. At the moment it is -4C at 25C.
A quick check tells me that (values rounded down) 22F = -6C and 25F = -4C. I'm not the biggest believer of a coincidence like that, so I inspected http://api.wunderground.com/auto/wui/geo/WXCurrentObXML/index.xml?query=Brussels,%20Belgium and noticed it didn't mention those values (well, it did, it says NA).

Now here's what I *think* goes wrong:
First, Temp is set @ http://bazaar.launchpad.net/~docky-core/docky/trunk/annotate/head:/StandardPlugins/Weather/src/Sources/WunderWeatherSource.cs#L189 , this is done in F.
Now FeelsLike tries to get set, it fails the checks for "NA" and thus executes:
FeelsLike = Temp; ( http://bazaar.launchpad.net/~docky-core/docky/trunk/annotate/head:/StandardPlugins/Weather/src/Sources/WunderWeatherSource.cs#L205 )
That's where it goes wrong, Temp's get is called and returns it in Celcius as per http://bazaar.launchpad.net/~docky-core/docky/trunk/annotate/head:/StandardPlugins/Weather/src/Sources/AbstractWeatherSource.cs#L84
So the value stored in FeelsLike is in C.
Now when FeelsLike's get is called, it will do the UseMetric check and call ConvertFtoC -again-, but FeelsLike value already was in C! So you end up with a weird negative value while it's the warmest day in weeks :)

Hope that made sense, I've never programmed in C# so I might have missed something.

Yes sorry, I am highly sleep deprived lately so I did not read the actual numbers you posted, just assumed you were confused about why it gave 2 temps.

Fixed in rev 1519.

debdiff which fixes this is attached to bug #579049

This bug was fixed in the package docky - 2.0.5-1

---------------
docky (2.0.5-1) unstable; urgency=low

  * New upstream release 2.0.5 "Be proud of your dock",
    changes include:
    + remove --debug flag from launcher for lower memory usage
    + update the about dialog credits to list documenters and make translation
      tab easier to read
    + change url in about dialog to the launchpad project page
    + Window-Matching
      - fix for applications commandline
      - properly match qt creator (LP: #594814)
      - prefer local over global launchers (LP: #588073) (LP: #592841)
      - match prefix for gksudo (LP: #516433)
      - fix nautilus items showing active indicator when desktop
        is focused (LP: #487113)
      - fix matching wine apps that use a prefixed launcher (LP: #596092)
    + Memory Leaks
      - dispose of calendar painter when the clock item is disposed
      - fix leak in AutoHideManager
      - several fixes using Cairo.Context.Target and Pango.Layout
      - fix leak in PagingPainters
      - fix leak in recursive file-deletion
      - fix leaking SeparatorItems, WnckDockItems
      - fix leaks with FileEmblems
      - fix Pixbuf related leaks
      - fix some leaks regarding FileMonitors
      - fix leaks regarding Tiles and AbtractTileObjects
      - fix leaking Glib.FileAdapter caused by unreferenced Action in
        FileDockItem
    + Handle invalid desktopfile entry and UriFormatException in
      FileApplicationProvider (LP: #595921)
    + fix potential crash for invalid HelperMetadata
    + handle drops correctly
    + fix handling of Helpers in HelperService
    + make the sliders in preferences behave better
    + fix drawing of rotated items
    + fix HoveredItem click-position
    + avoids fatal errors on console when loading embedded icons when no
      height or width is specified and when dock items have a null Icon
    + fix icon theme change not refreshing the dock icons (LP: #590205)
    + fix SVG rendering bug
    + fix iconsize temporarily getting large when adding to full dock
      (LP: #579576)
    + fix the 'crash in PinToDock' (LP: #588073)
    + make 3d background height more consistent and a tad larger (LP: #503038)
    + fix dragging multiple files to a folder on the dock, which caused
      a crash and data corruption (LP: #579049)
    + don't request animations if urgent state is removed from a window and
      fix glow location (LP: #596422)
    + fix window previews being offset (LP: #495065)
    + fix broken zoom after shrinking icon size (LP: #598924)
    + fix problem with hovers still visible when painters show
    + fix displaying default icon in place of missing file emblem (LP: #534651)
    + fix crash when gconf key for menus_have_icons is not set (LP: #573751)
    + make sure painters fit on screen (LP: #589978)
    + fix icon minimize animations not working immediately for some newly
      opened windows
    + don't dispose our static DockyItem
    + fix CurrentDesktopOnly not working when dragging a window across desktops
      (LP: #600290)
    + GMail:
      - fix thread-guards and remove deprecated code
      - fix problem with feeds that don't have a...

Accepted docky into lucid-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

This bug was fixed in the package docky - 2.0.5-0ubuntu1

---------------
docky (2.0.5-0ubuntu1) lucid-proposed; urgency=low

  * New upstream release 2.0.5 "Be proud of your dock",
    changes include:
    + remove --debug flag from launcher for lower memory usage
    + update the about dialog credits to list documenters and make translation
      tab easier to read
    + change url in about dialog to the launchpad project page
    + Window-Matching
      - fix for applications commandline
      - properly match qt creator (LP: #594814)
      - prefer local over global launchers (LP: #588073) (LP: #592841)
      - match prefix for gksudo (LP: #516433)
      - fix nautilus items showing active indicator when desktop
        is focused (LP: #487113)
      - fix matching wine apps that use a prefixed launcher (LP: #596092)
    + Memory Leaks
      - dispose of calendar painter when the clock item is disposed
      - fix leak in AutoHideManager
      - several fixes using Cairo.Context.Target and Pango.Layout
      - fix leak in PagingPainters
      - fix leak in recursive file-deletion
      - fix leaking SeparatorItems, WnckDockItems
      - fix leaks with FileEmblems
      - fix Pixbuf related leaks
      - fix some leaks regarding FileMonitors
      - fix leaks regarding Tiles and AbtractTileObjects
      - fix leaking Glib.FileAdapter caused by unreferenced Action in
        FileDockItem
    + Handle invalid desktopfile entry and UriFormatException in
      FileApplicationProvider (LP: #595921)
    + fix potential crash for invalid HelperMetadata
    + handle drops correctly
    + fix handling of Helpers in HelperService
    + make the sliders in preferences behave better
    + fix drawing of rotated items
    + fix HoveredItem click-position
    + avoids fatal errors on console when loading embedded icons when no
      height or width is specified and when dock items have a null Icon
    + fix icon theme change not refreshing the dock icons (LP: #590205)
    + fix SVG rendering bug
    + fix iconsize temporarily getting large when adding to full dock
      (LP: #579576)
    + fix the 'crash in PinToDock' (LP: #588073)
    + make 3d background height more consistent and a tad larger (LP: #503038)
    + fix dragging multiple files to a folder on the dock, which caused
      a crash and data corruption (LP: #579049)
    + don't request animations if urgent state is removed from a window and
      fix glow location (LP: #596422)
    + fix window previews being offset (LP: #495065)
    + fix broken zoom after shrinking icon size (LP: #598924)
    + fix problem with hovers still visible when painters show
    + fix displaying default icon in place of missing file emblem (LP: #534651)
    + fix crash when gconf key for menus_have_icons is not set (LP: #573751)
    + make sure painters fit on screen (LP: #589978)
    + fix icon minimize animations not working immediately for some newly
      opened windows
    + don't dispose our static DockyItem
    + fix CurrentDesktopOnly not working when dragging a window across desktops
      (LP: #600290)
    + GMail:
      - fix thread-guards and remove deprecated code
      - fix problem with feeds that do...