Though scorching temperatures highlighted the Discovery Day long weekend, just one new forest fire was recorded.

The small human-caused blaze in the Ross River district was discovered early Saturday afternoon and quickly extinguished, Yukon Wildland Fire Management reported today in its daily summary.

All 42 active fires in the Yukon are burning in remote wilderness zones and are not being fought.

Fire information officer George Maratos said this morning the ban on all open fires, including campfires, remains in effect for much of the southern Yukon.

It's expected it will be lifted tomorrow morning with a forecast change to cooler temperatures with a chance of rain.

Meanwhile, the fire burning along the Stewart-Cassiar Highway just south of the Yukon-B.C. border continues to keep the highway closed for much of the day.

Officials have been piloting traffic through between 8 a.m. and 2 p.m. but there are no guarantees, as everything is dependent on fire behaviour, B.C. fire information officer Tim Neal said this morning.

Neal said firefighters successfully conducted controlled burns over the weekend to expand the size of the fire break along the north flank of the fire.

There are 40 firefighters on the blaze, including 20 from the Yukon.

The fire, now estimated at more than 25,000 hectares, has been causing regular highway closures since it was sparked by lightning three weeks ago.

Maratos, who was in Watson Lake, said officials are confident the forecast for lower temperatures accompanied by rain will help cool the fire significantly.