A few current values (some of these will probably rise a little more 'til max temp is established):

Nis +36°C
Belgrade +36°C
Zagreb +35°C
Osijek +36°C
Maribor +34°C
Brno +35°C
Bratislava +35°C
Trencin +36°C
Gyor +36°C
Poznan +36°C
Szczecin +36°C
Berlin +36°C
Leipzig +37°C
Berlin Center +37°C
Magdeburg +37°C

Until a few years ago these peeks would have easily been the highest ones in a decade. Now they're just the highest in a... year. Oh well. Impressive.