Recent forecast model runs from European agencies indicate variable overnight radiative cooling in Paris for July 4–5, with low temperatures likely ranging 15–17°C depending on cloud cover and wind. Following June’s extreme heatwave, which elevated baseline soil and urban heat storage, current conditions favor moderate moderation rather than sharp drops, keeping the market tightly bunched around typical early-July climatology. Key variables include Atlantic flow strength and potential for clear skies enhancing cooling versus lingering moisture trapping heat, with ensemble spreads explaining the near-equal implied probabilities for 15°C, 16°C, and 17°C. Updated Météo-France guidance expected within 48 hours could shift resolution odds as the event window approaches.