Over the next 10 days Nantes tops out around 81° (Wednesday) and dips to 53° on the coolest night (Saturday). Roughly 0.58 in of rain falls over the period, with Thursday the most likely wet day (73%). Wind is the one to watch: gusts to 33 mph around Sunday. Right now Nantes is about 7° cooler than nearby Paris. Longer view: four distinct seasons, with the biggest swings between high summer and midwinter.
Nantes, France · 47.22°N, 1.55°W · Europe/Paris · Forecast computed for these exact coordinates