Forecast models for New York City point to overnight lows in the upper 60s to low 70s on July 12 as the main driver of trader sentiment, reflecting a warm, humid air mass with moderate cloud cover and light winds that limit radiative cooling. These conditions typically keep minimum temperatures near or slightly above the July average of 71°F at Central Park, though clearer skies or calmer winds could enhance heat loss and push readings into the mid-60s. Recent model runs show modest spread due to evolving boundary layer moisture and steering patterns, with official National Weather Service guidance highlighting uncertainty in exact nocturnal temperatures. The closely matched leading brackets underscore how small shifts in these variables can alter the official low recorded at LaGuardia Airport.