Forecast Channel hasn't updated for ages

[JMC47]

So the VFFs created by the VFF Downloader are "hacked" to never expire, so the Wii System Menu/Forecast Channel don't bother trying to download new data, since it believes that data is up to date. Back then this was kind of a necessity, but nowadays it's a serious hindrance.

You can fix this by deleting /title/00010002/48414645/data/wc24dl.vff within your emulated Wii NAND and letting Dolphin download fresh VFF files.