Short-range forecasts from the Met Office and European models currently point to a mild mid-May setup over southern England, with light winds, variable cloud cover, and limited Atlantic moisture keeping the daily maximum in London near 14–16 °C on 18 May. Ensemble guidance shows only modest spread around these values, reflecting the short lead time and typical springtime boundary-layer mixing. This consensus explains why the market clusters tightly on 14 °C, 15 °C, and 16 °C while assigning low probability to warmer or cooler extremes. Historical climatology places the long-term average May high at roughly 17 °C, so the present forecast sits slightly below normal but within one standard deviation. Final model runs issued in the next 24–48 hours will refine cloud timing and any weak frontal passage that could alter the peak by 1–2 °C.