Met Office's April 30 forecast update shows London's May 2 minimum temperature at 12°C, with hourly lows dipping to 11°C amid sunny intervals turning cloudy and heavy rain late evening, anchoring trader sentiment around 11–13°C outcomes amid a fragmented market implying high uncertainty. This follows April's early record 26.6°C heat in Kew Gardens giving way to a warming trend under high pressure, but incoming Atlantic moisture risks trapping heat overnight via cloud cover—increasing minima—while clear spells or delayed showers could allow radiative cooling toward 10°C or below. Key variables include precipitation timing, wind shear (light southerlies at 7–16 mph), and urban heat island effects elevating central lows above rural sites like Heathrow; new model runs expected May 1 could sharpen resolution before the typical early May baseline of 7–9°C.