Nepal has been battered by torrential rain, causing widespread flooding and landslides and raising the death toll from three days of severe weather to 49 people, according to officials.
The toll could go higher as three dozen people were reported missing. Another 17 were injured.
The heavy rain, which mainly hit the country's southern plains, led to the evacuation of 5000 people, a Home Ministry official said.
More than 30 people were reported dead on Saturday.
Army and police personnel continued search and rescue operations, with more than 34,000 houses submerged, the official added.
"The number of dead could increase as we are still compiling the final tally," said Laxmi Pun, an aide to Home Minister Janardan Sharma, told Reuters.
The Red Cross estimated 100,000 people were affected by the disaster, with one official describing how the storm had cut off communication and electricity, adding to the challenges in rescuing people and distributing aid supplies such as food and water to displaced people.
Monsoon rains which start in June and continue through September are important for farm-dependent Nepal, but they also cause havoc each year.