EDMONTON -- Firefighters from Ontario were to arrive in Alberta on Friday to help battle wildfires in the province.

Warm and dry conditions have increased the fire hazard to high or extreme in some areas.

Temperatures are expected in the high 20s in many parts of the province on the weekend and there's not much rain in the forecast.

Sustainable Resources said more crews are needed to battle blazes already burning or to respond to new ones.

Last year, 117 Ontario firefighters came to Alberta to help, and Alberta sent support to the Northwest Territories, British Columbia, Alaska and Idaho.

There were about two dozen fires burning in the province on Friday, but none were out of control.