In Noisy-le-Grand, winter is typically cool and unpredictable, with temperatures fluctuating between freezing and mild days. Spring brings gradual warming, with March often being the warmest month so far, but still experiencing chilly nights. Summer is generally pleasant, with July and August averaging around 19°C, but occasional heatwaves can push temperatures into the high 20s or even low 30s. Autumn is marked by a steady decline in temperature, with October being particularly cool, before the onset of winter's chilliness returns.