On January 12th, a blanket of fog may be seen in the Terai regions of Shamli, Meerut, Muzaffarnagar, Baghpat, Moradabad, Bareilly, and Pilibhit in western Uttar Pradesh, adjacent to Delhi. A new Western Disturbance will activate on Monday, bringing cold weather to Uttar Pradesh. Its impact will be mostly felt in western Uttar Pradesh, but it will be ineffective in eastern Uttar Pradesh.