Current forecasts from Taiwan’s Central Weather Administration and global models indicate a modest subtropical high-pressure ridge over northern Taiwan on May 18, supporting afternoon highs near 31–33 °C at the Taipei Songshan station. Ensemble guidance shows limited afternoon insolation due to increasing low-level moisture and possible thin cloud cover, keeping peak temperatures from climbing into the mid-30s while still exceeding the May climatological average of roughly 29 °C. The tight clustering of market-implied odds around 31 °C, 32 °C, and 33 °C reflects this narrow range of model solutions and the sensitivity of the daily maximum to small shifts in boundary-layer mixing and sea-breeze timing. Updated model runs later today will clarify whether the ridge strengthens enough to push readings toward the upper end of the distribution.