Lowest temperature in Chicago on May 27, 2026?

Prediction market odds on Kalshi reflect real-time aggregation of trader beliefs and are often compared against traditional weather forecasts from meteorological agencies and seasonal climate models. While meteorologists rely on atmospheric data and historical patterns, prediction markets incorporate diverse participant perspectives and financial incentives. The market's current pricing suggests strong conviction around specific temperature ranges. Comparing market odds to official National Weather Service forecasts and long-range climate outlooks can reveal where traders diverge from or align with expert consensus on Chicago's May weather.

The market resolves on May 28, 2026. Resolution is determined by the official recorded minimum temperature in Chicago on May 27, 2026, as reported by the relevant meteorological authority. The outcome will be matched against the temperature bands offered in the contract to determine which shares settle in the money. Traders holding positions in the correct temperature range receive their payout, while incorrect positions expire worthless. The resolution process is automated once the official temperature data is confirmed.

Several factors could shift market odds before resolution. Updated seasonal climate forecasts and long-range weather models will influence trader expectations as May 2026 approaches. Major atmospheric patterns, such as shifts in the jet stream or development of high or low pressure systems, typically drive price movement. Historical May temperature data and anomalies also inform positioning. As the event date draws closer, short-range forecasts become more precise, often triggering significant repricing. Real-time weather alerts and any unusual climate events in the months leading up to May 27 could also impact market sentiment and trading volume.