Meteorological forecasts from major European models have converged on a minimum temperature of 12°C for Paris on June 10, driving the overwhelming 98.5% market-implied probability for that outcome. Unsettled conditions with widespread cloud cover and light rain have kept overnight lows near seasonal norms of 11–13°C, consistent with June climatology and current surface observations. Official guidance highlights minimal diurnal temperature range due to persistent moisture and light winds, limiting the scope for sharper drops. Resolution hinges on the official station reading at the close of the 24-hour period; only an unanticipated late surge in radiational cooling or a localized measurement discrepancy at the primary monitoring site could realistically shift the recorded low away from 12°C.