Le Mérévillois (French pronunciation: [lə meʁevilwa]) is a commune in the department of Essonne.

It was established on 1 January 2019 from the amalgamation of the communes of Méréville and Estouches.

The average annual temperature in Le Mérévillois is 11.1 °C (52.0 °F).

The average annual rainfall is 639.1 mm (25.16 in) with May as the wettest month.

The temperatures are highest on average in July, at around 19.3 °C (66.7 °F), and lowest in January, at around 3.8 °C (38.8 °F).