**Forecast consensus from European and global models centers on a Warsaw high of 19–20 °C for June 16, 2026, producing the market’s tight split between those two outcomes.** Short-range guidance from sources such as the Met Office, BBC Weather, and timeanddate.com shows daytime maxima of 19–20 °C (66–68 °F) under partly cloudy skies with light showers or sprinkles and moderate westerly flow. These conditions limit solar heating and keep readings below the mid-June climatological average of ~22 °C. Recent model runs continue to cluster in this narrow range after a sharp cool-down following the early-June heat spike, with cloud cover and modest wind providing the main downward pressure on peak temperatures. Traders are therefore weighting the 19 °C and 20 °C bins most heavily while assigning only modest probability to 18 °C or 21 °C, reflecting the small but non-zero uncertainty from timing of any afternoon clearing or slight model spread in 2-meter temperature forecasts. Resolution will hinge on official station observations, with any late revision in the final ECMWF or GFS runs capable of shifting marginal probability between the two leading outcomes.