Ljubljana, Slovenia.
Temperature: -9°C Conditions: Light Snow and Mist Clouds: Overcast
Maribor, Slovenia.
Temperature: -8°C Conditions: Light Snow and Mist Clouds: Overcast
Portoroz, Slovenia.
Temperature: 0°C Clouds: Broken Clouds

Good Lord, it really happened. (source)
Well, folks, here it is. Anouk, a leading member of Englistika and a recovering Dutchoholic, has stumbled upon the Holy Grail of mix-ups: a Dutch site that thinks Slovenia is Sierra Leone.
I don’t think this can be topped. I’m kind of impressed, in a way.
Presumably the problem was caused by similar country codes: Sierra Leone is SL, Slovenia is SI.
(Thanks to Anouk and Grega at Englistika!)