For the year ended 30 June, Dunelm expects a pretax profit of £96M, up from £83.6M a year earlier.
Analysts expect the company’s profit before tax to be £91.6M, according to Thomson Reuters.
The company, which has 124 Dunelm Mill stores across the UK selling household items including bedding, curtains, kitchenware and lighting, said revenue grew 12% to £603.7M.
"Like-for-like sales growth was exceptionally strong, boosted by the unusually wet weather over much of the quarter which ensured consistently strong footfall into stores," the company said.
Like-for-like sales rose 10.4% for the fourth quarter. They were up 3.1% for the whole year.
Britain endured snowfall and freezing temperatures in February, which was followed by record heavy rainfall in April.
Dunelm will report its full-year results on 13 September.
Shares in the company, which have risen 18% since the beginning of this year, closed at 512p on Wednesday on the London Stock Exchange.