Recent forecasts from agencies including the Met Office and timeanddate models indicate a cool frontal passage and widespread rain on August 17 will sharply reduce maximum temperatures in Warsaw to the 20–23 °C range, down from 30–31 °C highs the prior two days. Persistent cloud cover is expected to limit solar heating while northerly flow advects cooler maritime air, keeping the daily peak near the long-term August mean of 23 °C. Trader consensus clusters on 22–23 °C because ensemble guidance shows only modest spread in boundary-layer moisture and timing of the rain shield, with resolution hinging on the precise hour of peak insolation before overcast thickens. Updated model runs tomorrow morning will refine the exact maximum.