The forecast for Launceston until Friday - the first day of autumn - predicts a maximum of 29 degrees with the coldest overnight temperature being 14 degrees on Thursday.

A little rain is predicted for tomorrow, Tuesday and Wednesday.

Weather bureau forecaster Matthew Thomas said a dominant feature for the next week was a high pressure ridge over the Tasman Sea, which suppressed showers and brought stable weather.

He said summer looked set to finish as a dry one in Launceston. The city has only had 9.2 millimetres of rain this month and 15.8 millimetres last month, with 63.5 millimetres in December.

The average rainfall for December is 46.9 millimetres, 45 millimetres for January and 32.3 millimetres in February.