Firefighters are still battling a forest fire that has engulfed a valley in rural Marlborough, but rural fire authorities are confident the majority of the blaze will be contained by tonight.
A blaze to the the north of the Wairau River, in the Waikakaho Valley, has been burning since Wednesday.
Dry conditions and wild winds of up to 100km/h hampered firefighters and pilots' efforts to contain the 453ha fire yesterday.
About 50 to 70 firefighters along with three aircraft would be battling the blaze today.
Marlborough principal rural fire officer Richard McNamara said the blaze was expected to be 80 per cent contained by 6pm today as weather conditions improved.
"We've had increasing relative humidity which means the vegetation is more susceptible.
"Wind's gone down to 10km an hour and temperature has gone down too," he said.