Latest numerical weather prediction ensembles from European and global models indicate a mild spring pattern over southern Germany, with Munich's daily maximum on May 18 most likely falling between 18 °C and 20 °C. This consensus stems from moderate southerly flow under building high pressure, delivering daytime warming near seasonal normals without strong frontal passages or clear-sky radiative cooling. The tight spread among outcomes reflects genuine forecast uncertainty in boundary-layer mixing and cloud cover timing, which can shift the peak by 1–2 °C within the final 48-hour window. Official verification will rely on the Deutscher Wetterdienst station reading, consistent with historical mid-May averages of 17–19 °C.