Melbourne, enjoy it while it lasts.

After a very pleasant autumn afternoon when the temperature peaked at 20.1°C at 1:30 pm, temps should stay relatively mild this evening under the influence of a north to northwesterly airstream. Skies should also remain mostly clear.

But because life is cruel, things will change on Tuesday as a cold front moves in from the southwest, bringing a squally change around midday with the strong likelihood of showers in the wake of the front.

There could even be some small hail in the afternoon and into the evening as temperatures drop, and there's the chance of a little snow above 1200 metres in mountain areas northeast of Melbourne.

Image: Monday's 5 pm synoptic chart shows the front lurking over the Bight.

This won't be one of those systems that hangs around for days. Things should clear up on Wednesday with only a shower or two around for the rest of the week as a series of fronts clip the Victorian coastline.

But it's very unlikely that Melbourne temps will reach 20°C or higher for the foreseeable future, or that an evening will be as mild as this Monday, so dinner on the back porch or balcony is highly recommended.

Adelaide and Hobart will also be impacted by this week’s cold fronts, but Sydney, Canberra, Perth and Brisbane should remain dry.

The pick of this week’s weather might just be in Darwin, where things appear to be drying up after the wet season, and temps as high as 35°C are forecast.

And if you're interested in all the Melbourne weather for April 2021 to date, the stats are here.