And I thought that Melbournes weather was odd.
Only a few weeks ago, it was snowing - pretty heavily even, and it was bitterly cold. Today, I was walking around in a t-shirt. Its warmed up a *lot*.
Apparently Fridays going to be 19° or so, and Saturday 21°! 
Scary.
That said, I have been told that getting snow that late was very odd, and its now definitely well into spring.
Ahh, I can see it now. It hits 21°, and the streets will be filled with pasty skinned English guys, who've decided its a good idea to walk around shirtless... Gah!