Lomné has an oceanic climate (Köppen climate classificationCfb). The average annual temperature in Lomné is 12.6 °C (54.7 °F). The average annual rainfall is 1,247.7 mm (49.12 in) with November as the wettest month. The temperatures are highest on average in August, at around 20.0 °C (68.0 °F), and lowest in January, at around 5.6 °C (42.1 °F). The highest temperature ever recorded in Lomné was 39.1 °C (102.4 °F) on 18 July 2022; the coldest temperature ever recorded was −13.4 °C (7.9 °F) on 8 February 2012.
Climate data for Lomné (1991−2020 normals, extremes 2007−present)