Amid record heat, Barcelona logged its highest temperature in 112 years, reaching 40.7C on Tuesday.
The scorching heat forced brief shutdowns at French nuclear reactors.
Spain’s most extensive wildfire near Madrid continued to burn, covering nearly 20,000 hectares.
In France, wildfires also spread out of control.
Hail battered the Balkans, damaging homes.
Meanwhile, Scotland and Canada faced individual wildfires under Europe’s unstable weather patterns, raising concerns.
Authorities alerted of worsening conditions as high temperatures persisted across the continent, intensifying worries.