Trader consensus on Polymarket reflects tight uncertainty in ensemble forecast models for Miami's highest temperature on April 17, with NWS guidance pointing to the lower 80s°F under mostly sunny skies and light east winds of 5-10 mph—lighter than recent days' 10-15 mph gusts that capped highs around 78-82°F amid a persistent Atlantic high-pressure ridge. Differentiating factors include potential sea breeze timing and inland push, which could suppress peaks toward 76-77°F if stronger, versus ridge weakening allowing 84-85°F or even 90°F+ if winds drop further and solar heating dominates; historical April averages hover at 82°F, with normals near 84°F. New GFS/European model runs expected overnight may sharpen probabilities ahead of resolution.