On 26-Dec, a weak upper-level WD trough is expected to reach N Pakistan ... https://d2jhuj1whasmze.cloudfront.net/photos/normal/ftSai.jpg
Now, a WD upper,mid-level trough seen along Nepal and Uttarpradesh.
And, this is expected to drift east into NE States of India in 24hrs.
Till 8:30am of 24-Dec, many zones of N,NW,N-central India witnessed COLD day and night conditions.
COLD Christmas day morning expected over many zones of N,N-central and central (Madhyapradesh) India ... https://d2jhuj1whasmze.cloudfront.net/photos/normal/ftStr.jpg
Due to next WD, Saturday morning temp can be +1 or 2C than today over N,NW India., but Madhyapradesh will have COLD day, night.
From noon, evening of 26-Dec, scattered snow / rain for Kashmir and into N Himachal ... https://d2jhuj1whasmze.cloudfront.net/photos/normal/ftSG8.jpg