Highest temperature in Mexico City on July 5?

Prediction market odds reflect aggregated trader beliefs and often incorporate meteorological forecasts, historical climate patterns, and real-time atmospheric data. Professional weather analysts typically issue point estimates or ranges for daily highs; this market translates those into probabilistic outcomes that traders can buy and sell. When analyst consensus shifts—such as a change in jet stream positioning or moisture patterns—market prices often adjust within hours. Comparing the implied odds in this market to published forecasts from national weather services can reveal where traders see upside or downside risk relative to expert opinion.

On Polymarket, traders set the odds by buying and selling shares tied to specific temperature outcomes. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome bracket—such as 28–30°C, 30–32°C, or above 32°C—has its own price, ranging from near zero to near one dollar. The sum of all outcome prices equals one dollar, ensuring the market is internally consistent. As traders place orders, prices shift to reflect changing expectations about July 5's high temperature in Mexico City, with active trading typically concentrated near the most likely outcomes.

This market resolves around Jul 5, 2026, once July 5 has passed and the day's highest temperature in Mexico City is verifiable from credible public sources. The outcome is determined by comparing the recorded high against the predefined temperature brackets offered in the market. Traders who held shares in the correct outcome bracket receive their payout, while incorrect positions expire worthless. Resolution typically occurs within 24–48 hours after the event, once official meteorological data is published and confirmed.

Major weather pattern shifts—such as changes in high-pressure systems, tropical moisture intrusion, or unexpected cloud cover—can significantly move prices. Updated forecasts from Mexico's National Meteorological Service or international weather models often trigger trading surges. Urban heat island effects, seasonal anomalies, and historical July temperature records also influence trader positioning. As the event date approaches, intraday weather updates and real-time atmospheric conditions become increasingly important, with final price movements often occurring in the 24 hours before the market closes.