Hottest temps ever.....in Europe

 Ramping up to around 100° F around 38°C......but the cellar is staying in the 60's....17°C, or so.
Humidity low and the heatwave will not last long.
We are lucky, most Dutch houses do not have a geothermally cooled underground cellar.  It acts as a big  cooler for the whole house in summer and keeps temps above 50°F in winter.