A cyclonic circulation in Bihar and adjoining areas will produce heavy rains and thunderstorms over Sikkim, Arunachal Pradesh, Assam and Meghalaya on Wednesday.
A fresh western disturbance will affect the weather over Northeast on Thursday.
It will bring scattered to widespread snow/rain and thunderstorms over the Western Himalayan Region on Friday and Saturday, weather.com reported.
The entire region of Northeast has been recording rain and thundershower activities for last many days.
During the last 24 hours, a gradual increase in the ongoing rainfall activities has been witnessed as fairly widespread rain and thundershower occurred in the entire northeastern states, Skymet Weather reported.
In Assam Dhubri recorded heavy rain of 17.1 mm, Mazbat and North Lakhimpur also observed fairly widespread rain of 10.8 mm.
Similarly in Sikkim, Gyalsingh recorded 13 mm of rain. In Meghalaya, Shillong recorded 9.1 mm of rain and Cherrapunji observed 6.3 mm of rain during the last 24 hours.
Also, Kohima in Nagaland witnessed 4.4 mm of rainfall.
Meanwhile, Arunachal Pradesh and Sikkim also observed scattered snowfall activities.
The intensity of rain will be more over Assam, Meghalaya, Manipur, Nagaland, and Arunachal Pradesh.
Snowfall activities will also increase in Arunachal Pradesh during the next 24 hours.
With these rains, the day temperatures are expected to fall further.
By February 28, the weather of entire Northeast will clear up leading the maximums to rise gradually once again.