Will the high temp in NYC be <45° on Mar 13, 2026? — 44° or below

Commercial weather applications are aggressively bearish on today's high temperature. Weather.com (Google Weather) forecasts a high of only 41-43°F for March 13, while AccuWeather forecasts exactly 45°F. If these models are correctly capturing thick cloud cover that limits solar insolation, the temperature will struggle to rise the necessary 8 degrees from its mid-morning reading of 37°F. The current temperature at 10:27 AM EDT is only 37°F. With 'increasing clouds' in the official forecast, the window for direct solar heating is closing rapidly. If the cloud deck thickens faster than the warm air advection can compensate, the temperature could easily stall at 43-44°F, securing a YES resolution. Polymarket traders are pricing a 22-32% chance that LaGuardia Airport stays at 44°F or below today. Since Central Park is often 1-2 degrees cooler than LaGuardia due to the urban heat island effect being slightly mitigated by the park's vegetation, the true probability for Central Park staying below 45°F could be higher than the LGA odds suggest.

The official National Weather Service forecast for Central Park explicitly calls for a 'high near 48' today. The NWS Area Forecast Discussion issued at 6:12 AM EDT on March 13 confirms this trajectory, stating 'Temperatures return to more seasonable levels with highs in the 40s' and noting that a 'gusty south wind develops this afternoon.' The developing south wind is a critical make-or-break factor that commercial apps often underestimate. South winds in NYC bring warm air advection from the land and ocean to the south. Even with cloud cover, this advection is typically sufficient to push temperatures up by 2-3 degrees per hour in the early afternoon, easily clearing the 44°F threshold required to resolve the market NO. The historical average high for March 13 is 49°F. For the market to resolve YES, the temperature must stay 5 degrees below average. Given the synoptic setup with an approaching warm front and south winds, a significant underperformance relative to climatology is meteorologically unlikely, making the NWS forecast of 48°F highly credible.