Recent forecasts from the Russian Hydrometeorological Center and global ensembles highlight a westerly frontal passage with scattered precipitation and variable cloud cover over Moscow on September 11, 2026, suppressing daytime heating and positioning the maximum near the climatological average of 17.3°C. Model consensus across runs supports an afternoon peak of 17–19°C under southerly to westerly winds of 6–11 m/s, with brief clearing potentially allowing a brief spike to 18°C before cooler air advection. This scientific outlook underpins the market’s overwhelming 99.8% weighting on 18°C. Only unexpected model shifts, such as rapid clearing or delayed frontal timing, could realistically push readings outside the narrow 17–19°C window.