Miami's weather on April 28 will be observed against historical April patterns for South Florida. The prediction market is asking whether the day's peak temperature will fall within the narrow 74-75°F range. Currently trading at 0% YES odds, market participants are expressing extreme skepticism that Miami's high will land precisely in this one-degree band. This reflects the inherent difficulty of predicting weather within such tight constraints—Miami's April highs typically range from 80-88°F depending on pressure systems and cloud cover. At 0%, traders are effectively saying Miami will be either cooler than 74°F, which is unusual for late April, or substantially warmer than 75°F, which is more typical. The current price implies traders expect a temperature swing well outside this specific range. Historical data shows Miami rarely experiences April highs below 74°F, making the YES outcome a low-probability event. Market resolution will occur after April 28 closes based on official Miami weather service data.
Deep dive — what moves this market
Miami sits in a subtropical climate zone where April represents the transition from spring into early summer conditions. The city's weather patterns are influenced by Atlantic Ocean temperatures, which in late April typically range from 75-80°F, as well as atmospheric pressure systems that migrate northward. Understanding whether Miami's April 28 high will fall into the 74-75°F range requires examining several converging factors. The prediction market's 0% odds suggest traders have concluded this outcome is virtually impossible, though that assessment depends on weather dynamics. For Miami to experience a high of exactly 74-75°F on April 28, several conditions would need to align. A strong cold front pushing south from the continental U.S. could depress temperatures, or extensive cloud cover and rainfall could limit solar warming. Alternatively, an early-season tropical system or a stalled low-pressure zone could keep temperatures suppressed. Historically, Miami does occasionally see April highs in the 70-76°F range when these conditions coincide—typically 3-5 times per season during transitional weather patterns. Such days usually follow overnight rain or occur during the passage of a frontal boundary. Conversely, the NO case is far more typical. Miami's average April high is around 84-86°F in most years, with typical daily highs ranging from 80-88°F. The city's location near warm ocean water, strong spring sun angle, and relatively stable high-pressure patterns favor warmer conditions. Most April days in Miami feature clear to partly cloudy skies, allowing solar radiation to warm the land surface throughout the day. For the high to stay below 75°F would require unusually cool air mass and persistent cloud cover—conditions traders consider unlikely given typical late-April atmospheric setup. The market's 0% odds reflect an asymmetric risk assessment: traders believe the probability of Miami hitting exactly 74-75°F is so remote that no one is willing to accept risk at any price. This could stem from recent weather models showing sustained warmth, or simply the mathematical improbability of landing in such a narrow range. Weather data from the past decade suggests late-April Miami highs fall within any given one-degree band less than 5% of the time, making ultra-precise temperature banding inherently difficult to predict. Resolution depends entirely on official readings from Miami's National Weather Service station on April 28.
What traders watch for
Monitor Miami National Weather Service forecast updates through April 28—official high temperature reading determines market resolution.
Track Atlantic sea surface temperatures and any frontal systems approaching South Florida that could cool conditions.
Watch overnight April 27-28 for rainfall or cloud cover patterns that suppress daytime warming below normal.
Check pressure systems migrating north; low pressure with moisture could limit peak temperatures below the 74-75°F range.
How does this market resolve?
This market resolves based on the highest temperature recorded in Miami on April 28, 2026 according to the National Weather Service or official weather authority. It settles YES if that high falls between 74°F and 75°F (inclusive); otherwise NO.
Prediction markets aggregate trader expectations into real-time probability estimates. On Polymarket Trade, every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. This page summarizes the market state for readers arriving from search; for live trading (place orders, see order book depth, execute a trade) open the full interactive page linked above.
