Temperatures will inch up across the UAE on Wednesday, becoming hotter as the weekend approaches. Fog blanketed Sweihan, north-west of Al Ain, in the early hours. It is expected to clear by 9am, leaving a mainly sunny day, which will be hot in some areas. The mercury will hit 36°C in <a href="https://www.thenationalnews.com/tags/abu-dhabi/">Abu Dhabi</a> city and 33°C in <a href="https://www.thenationalnews.com/tags/dubai/">Dubai</a>. But it will be noticeably hotter in the south, where temperatures will reach 41°C. The skies will be mainly sunny, becoming cloudy at times, and winds will be light to moderate. Conditions in the Arabian Gulf and Sea of Oman will be calm. Humidity will rise again overnight, raising the risk of mist and fog early on Thursday. Temperatures will reach 40°C in <a href="https://www.thenationalnews.com/tags/abu-dhabi/">Abu Dhabi</a> city and 41°C in <a href="https://www.thenationalnews.com/tags/dubai/">Dubai</a>, according to the National Centre of Meteorology. It will reach a peak on Friday, when some areas could see highs of 42°C.