Monsoonal conditions are finally developing across the Top End.

But the rain when it falls may come in the form of heavy thunderstorms, the Bureau of Meteorology has just warned.

After rain fell in Darwin and Palmerston for much of today, the monsoon is still moving across western and northern parts of the Top End to hopefully bring the wet weather there as well.

A trough is persisting across the central districts have led to significant rainfalls over parts of the NT.

Down south, Mount Lloyd outside of Alice Springs recorded 29mm while 76mm fell at CDU in the northern suburbs of Darwin and north of Katherine, 21mm fell at Sleisbeck.

The bureau today said rain is set to continue this week for much of the north west Top End and parts of the central districts.

"Be aware, it may come as part of potentially severe thunderstorms," a bureau spokeswoman said.

Today we're forecasting 10-35mm of rain around Darwin and heavy rain with thunderstorms across western parts of the central districts.

Tomorrow heavy rain with severe thunderstorms is possible in the western parts of the central districts, extending up to Darwin and as far south as above Yuendumu.

In the south west corner, there is a chance of damaging winds and hail greater than 2cm with thunderstorms.

"We are currently experiencing the driest wet season to date, having recorded 350mm of rain so far compared to 723mm expected by this time of year in an average wet season (using Darwin Airport as the main observation point)."

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