Recent forecasts from multiple models, including Yr.no and Met Office ensembles, indicate Moscow's September 4 high will likely reach 20–21°C under overcast skies, light southwesterly winds of 2–4 m/s, and minimal precipitation under 1 mm. This places the peak slightly above the 1991–2020 climatological average of 18.7°C following a brief warm spell early in the month. Overcast conditions limit diurnal heating while stable pressure gradients reduce variability, keeping most runs clustered in the 19–22°C range. Minor differences among leading outcomes stem from precise timing of any partial cloud breaks or advection shifts that could add or subtract 1°C from the afternoon maximum. Updated model runs closer to the date will refine these narrow spreads.