Firefighters in British Columbia are concerned another heat wave will help spark more fires across the province.

Temperatures are already rising and are expected to stay high for the next seven days, particularly in the Southern Interior, which is forecast to see highs in and above the mid-30s.

Kevin Skrepnek, an information officer with the B.C. Wildfire Management Branch​, says rainfall throughout the province this week gave firefighters a break, but expectations of hot, dry conditions are raising concerns.

Roughly 2,500 personnel have been committed to battling the blazes provincewide.

The largest fire is the 520-square-kilometre blaze in Chelaslie River, south of Burns Lake in the north-central area of the province, which has not affected populated areas but did prompt an evacuation order.

Evacuation orders throughout B.C. were rescinded this week, thanks in part to provincewide showers, though some residents have been warned they may have to leave again at a moment's notice.

With files from CBC News