In all the time I have lived in Melbourne, I don't remember it ever being this hot. In fact, I don't recall it ever being this hot when I lived in Adelaide either.
Updated to say: How right am I! Apparently this has been the hottest temperature ever recorded in an Australian capital centre. No wonder I don't remember it being this hot in Adelaide.
Our weather conditions as of 40 minutes ago from theweatherchannel.com.au:
Conditions at Laverton 16:00 Saturday February 7th
Wind: NW at 53.6 km/h
Rain since 9am: 0.0 mm
Mean Sea Level Pressure : 997.6hPa
Relative Humidity :7%
I have know idea if that is the hottest it has been all day. I haven't been checking.
For those of you who don't work in celcius, that is 116.4F.
Edited to Add: According to the news, this is the hottest day in Melbourne since records began and ended up being 47.9 degrees near me.
Edited again: There are a number of fires burning out of control, and a number of houses burnt out across the state. Please keep the firefighters and people affected in your thoughts and prayers.