Recent atmospheric conditions over central Russia, including a persistent ridge of high pressure and southerly advection of warmer air masses, are driving forecast models toward peak temperatures of 27–30°C in Moscow on May 18. European and global ensemble runs show strong agreement on surface highs near 28°C under mostly clear skies, with minor divergences arising from the precise timing of peak solar heating and any late-day convective cloud build-up. Historical mid-May climatology at VDNKh station places typical maxima around 18–22°C, so the current setup represents a notable positive anomaly that has narrowed the probability spread among the top four outcomes. Traders are weighting the slight edge toward 29°C based on the latest 48-hour model updates, while acknowledging that small shifts in wind direction or boundary-layer moisture could trim or boost the daily high by 1–2°C before resolution.