It feels like summer in the city ... but don't get too used to it. Temperatures will dip to a wintry 15 degrees by Thursday. Credit:Leigh Henningham

After a cracking weekend weather-wise, Melbourne's taste of summer continues on Monday, with temperatures expected to reach 30 degrees in the afternoon.

But it won't last long.

Compared to recent times, Sunday night in the city was practically balmy, dipping to 15.4 degrees just after 5.15 Monday morning.

Bureau of Meteorology senior forecaster Dean Stewart says the summer-like conditions will continue Monday, with mostly sunny skies throughout the day and an even milder night that won't fall below 22 degrees.