Delhi-NCR is experiencing cold winds and fog, with severe pollution levels. The India Meteorological Department (IMD) forecasts stable temperatures between December 28 and January 2, with daytime highs around 20-21°C and slight night temperature rises on January 1-2. A cold wave alert is issued but expected to be isolated. Colder conditions and potential temperature drops are anticipated from January 3, influenced by western disturbances affecting northern hills, bringing rain and snow to higher regions.