Cold weather won't stop your EV charging, but it can slow rapid charging. A cold battery limits how fast it will accept DC power, so a winter rapid stop can take longer than the same stop in summer until the pack warms.
Many cars precondition the battery on the way to a planned rapid charger, warming it so it charges at full speed. Home AC charging is barely affected by the cold — it's slow enough that battery temperature isn't the limit.
Our journey twin lets you pick the month so cold-weather energy use is reflected in the estimate. It models the energy and range effects of cold; per-car cold charging curves are a planned refinement noted on the methodology page.