A fresh Western Disturbance, albeit a mild one, should be arriving tonight. This will help break the jinx of clear weather over the mountains that has been going on for quite some time now.
The system will stay put for the next two days. It will arrive today, although slightly late but will begin to give rains. Tomorrow it will stay and increase rains over the hills, reducing the day after tomorrow. Thereafter, clear weather is expected over the hills.
Now, though the system will give rains over the lower and mid reaches, higher reaches may see some now. There is no effect likely to be seen on the foothills of the state. Northern plains will also remain free from weather.
What the system will do to the plains is change the wind pattern, wherein winds will slow down. This will further deteriorate the levels of pollution but for a couple of days, no drop in temperatures will be seen. Temperatures are all above normal in almost the entire North Indian Plains.
A drop in temperatures is expected after the system moves away. As such the seasonal progression goes for dropping these temperatures, particularly since we have entered the first week of November. Some cold air will be seen blowing in the morning hours.