Recent ensemble forecasts from the European Centre for Medium-Range Weather Forecasts and German Weather Service indicate Munich maximum temperatures on August 21 will most likely reach 20–23°C, driven by a passing frontal system, increased cloud cover, and light showers that limit daytime heating under moderate westerly flow. This pattern follows warmer conditions earlier in the week and aligns with typical late-August climatology, where average highs decline toward 22°C amid shortening daylight and variable Atlantic influences. Market-implied probabilities cluster on 21°C as the mode because model consensus shows limited potential for stronger highs without clearer skies or southerly advection, while downside risks from heavier rain keep 20°C viable. Traders appear to weigh official agency guidance on these near-term variables heavily, with resolution hinging on the precise daily maximum recorded by local stations.