**Trader consensus strongly favors a 25°C high in Paris on October 4, 2026, at 98.8% implied probability, reflecting consistent output from numerical weather models and real-time observations.** A persistent high-pressure system over western Europe has produced mostly clear skies after morning cloud cover, enabling strong solar heating under light northerly flow. Afternoon temperatures have climbed steadily toward 24–25°C, aligning with Météo-France guidance and multiple forecast runs that place the daily maximum in this narrow range—about 5–7°C above the early-October climatological average. Low precipitation risk and stable atmospheric conditions reinforce the outlook. Only a late-day surge in cloud cover or an unforecast wind shift could realistically prevent the thermometer from reaching or briefly exceeding 25°C before sunset.