**Current forecasts from multiple models indicate a minimum temperature in Cape Town on August 27, 2026, most likely in the 12–14°C range, consistent with the closely matched market odds favoring 12°C (30%) and 13°C (29.5%).** Overnight radiative cooling under partly cloudy skies, light variable winds (typically 2–5 mph from the east or northwest), and a stable high-pressure setup are the main drivers, allowing temperatures to drop to near the dew point without significant mixing or cloud insulation. Official sources such as the South African Weather Service describe fine to partly cloudy conditions with no major frontal systems or strong advection expected to moderate the minimum. Historical climatology for late August shows typical lows around 10–12°C, providing context for why traders assign low probability (<3%) to extremes below 9°C or above 16°C. Model spreads arise from minor differences in predicted cloud cover and boundary-layer moisture, which can shift the exact minimum by 1–2°C depending on whether clearer skies enhance cooling or lingering clouds retain heat. The tight clustering of implied probabilities around 10–14°C reflects this genuine forecast uncertainty, with new model runs or observational updates from stations like Cape Town International likely to refine the outcome before resolution.