The Met Office has forecast light to moderate rain and thundershowers at many places across the country in the next 24 hours commencing 9am on Wednesday.
Parts of Rangpur, Mymensingh and Sylhet divisions and at a few places over Dhaka, Rajshahi, Khulna, Barishal and Chattogram divisions are likely to see rain and thundershowers.
Some other places across the country will likely be hit by moderately heavy to heavy falls, the Met Office forecast said.
The well-marked low over West Central Bay and adjoining North Andhra coast has weakened and became unimportant.
The axis of monsoon trough runs through Rajasthan, Haryana, Uttar Pradesh, Bihar, West Bengal to Assam across the northern part of Bangladesh.
One of its associated troughs extends up to the North Bay.
Monsoon is fairly active over Bangladesh and moderate elsewhere over the North Bay, the weather office said.
Day and night temperature may remain nearly unchanged.