Summer heat will remain across much of France on Sunday, except for some local cool spots. Meteorologists expect the polar jet stream to ripple overhead. After that shift, temperatures could drop noticeably, with the timing of cooler air varying by area.

Regional forecasts continue to show ongoing warmth in parts of the south. Certain regions will keep summer conditions longer, while some spots could get the cooler air ahead of the rest. The local outcome varies by place.