Perth weather: chance of a thunderstorm on Melbourne Cup day

PERTH’s taste of summer could disappear tomorrow, with the chance of a thunderstorm to dampen Melbourne Cup festivities.

After a week of sunshine, and a sticky night predicted tonight, the Bureau of Meteorology said there’s a 20 per cent likelihood of rain tomorrow with the chance of a storm.

With a predicted maximum of 32 degrees today, the mercury is tipped to fall to 20 degrees over night with a top of 33 predicted for Cup day.

If a storm does arrive, the Bureau said it would come in the early afternoon – hopefully well after the Cup’s midday start time.

The risk of a storm will linger into Wednesday, with a 50 per cent chance of rain.

The sun will be back on Thursday, with temperatures predicted to be in the high 20s until Sunday.