Environment Canada's latest forecast models project a daytime high near 20°C for Toronto on April 13 amid cloudy skies and a 30-40% chance of showers, driving trader consensus toward the closely bunched 21°C (30.5% implied probability), 20°C (26.8%), and 19°C (17.5%) outcomes. Variable cloud cover and precipitation timing introduce uncertainty, potentially capping solar insolation to limit peaks at 19°C or allowing brief clearing for 21-22°C if showers hold off until evening. This mild scenario stems from a persistent upper-level ridge ushering warmer air masses, well above the mid-April climatological average of 12-13°C. Hourly forecast updates expected this afternoon from the national weather service could refine peak temperature trajectories, influencing final trader positioning before resolution at official Toronto Pearson observations.