Bangladesh Meteorological Department this morning forecasted that rainfall will decrease in the next three days.

However, light to moderate rain/thunder showers, accompanied by temporary gusty wind,are likely to occur at many places over Rajshahi, Khulna, Barishal, Chattogram and Sylhet divisions in the next 24 hours, said a bulletin from the Met Office.

Moderately heavy to heavy falls may occur at a few places over Dhaka, Mymensingh and Rangpur divisions, it said.

The Met Office recorded the highest rainfall of 40mm in Sylhet in the last 24 hours, until 6:00am.

"The axis of Monsoon trough runs through Uttar Pradesh, Bihar, Gangetic West Bengal to Assam across northern part of Bangladesh," it added.

The Met Office said the monsoon is fairly active over Bangladesh and moderate to strong over North Bay.

The day and night temperature may remain nearly unchanged over the country.