Recent forecasts from UK meteorological sources point to overnight lows in London on July 17 around 16–18 °C, driven by a lingering warm airmass under high pressure with limited radiative cooling overnight. Urban heat island effects from the dense built environment, combined with possible increasing cloud cover or light showers later in the period, are expected to keep minimums from dropping into the mid-teens or lower. Model consensus shows modest spread due to uncertainty in exact timing of any Atlantic front or wind shifts, which explains the tight clustering of market-implied odds (35–37 %) across 14–18 °C outcomes. Historical July averages near 14–15 °C provide context, but current synoptic conditions favor milder nights. Updated model runs and official Met Office briefings over the next 48 hours will likely refine the precise minimum before resolution.