Current forecasts from the Met Office and BBC Weather indicate a minimum temperature of 11–12°C overnight into August 22 in London, aligning closely with the market's strong preference for 12°C. Clear skies and light northerly winds under a stable high-pressure pattern are enabling efficient radiative cooling after daytime highs near 21°C, consistent with typical late-summer conditions when Atlantic fronts remain suppressed. Ensemble models show limited spread, with only modest uncertainty from potential thin cloud or slight wind shifts that could nudge the low a degree higher or lower. No major forecast revisions have occurred in the past 48 hours, keeping trader consensus tightly clustered around these values ahead of final overnight observations.