Recent forecasts from GFS and other models indicate a post-frontal northwest flow over Paris on October 8, 2026, with clearing skies after possible morning showers and brisk winds limiting daytime heating. This setup favors a daily maximum near 15–16°C, aligning with the market's leading 16°C outcome at 56.5% implied probability. Cooler maritime air advection and partial cloud cover are suppressing temperatures below the long-term October 8 average high of roughly 18°C. Shorter-range guidance shows limited spread, though minor timing shifts in clearing or wind strength could nudge the peak into the 15°C or 17°C bins, which hold the next-highest trader support. Official observations from Météo-France or equivalent stations will determine the precise maximum for market resolution.