Pecquencourt (French pronunciation: [pɛkɑ̃kuʁ] ^ⓘ) is a commune in the Nord department in northern France.

Pecquencourt has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Pecquencourt is 10.8 °C (51.4 °F). The average annual rainfall is 743.8 mm (29.28 in) with July as the wettest month. The temperatures are highest on average in July, at around 18.6 °C (65.5 °F), and lowest in January, at around 3.6 °C (38.5 °F). The highest temperature ever recorded in Pecquencourt was 41.6 °C (106.9 °F) on 25 July 2019; the coldest temperature ever recorded was −19.0 °C (−2.2 °F) on 17 January 1985.