Thousands of people were evacuated from Noosa overnight with suburbs remaining cut off as a bushfire rages out of control.

Tewantin, in Noosa's north, is cut off and there are concerns spot fires could cause more havoc as temperatures rise throughout the day.

A bushfire forced the evactuation of thousands of Noosa residents. Credit:Seven News

Roughly 2000 people were evacuated from Tewantin and Noosa North Shore on Friday afternoon and into the night, independent Noosa MP Sandy Bolton said.

They sought shelter at local showgrounds, sporting facilities and church outreach centres.