Recent Met Office forecasts highlight a developing northerly airflow across the UK, drawing cooler maritime air and pushing temperatures below seasonal averages for mid-August. This setup supports daily minimums in London near 13–15°C on August 20, with partly cloudy skies, scattered showers, and light winds limiting radiative cooling. Ensemble guidance shows limited day-to-day variability in the short-range window, keeping extremes below 12°C or above 17°C unlikely. Trader consensus, reflected in the heavy weighting toward 15°C and 16°C outcomes, aligns with these model consensus runs and climatological baselines of 14°C average lows, while acknowledging residual uncertainty from any last-minute frontal timing shifts.