Lowest temperature in Washington DC on May 27, 2026?

The market resolves on May 28, 2026, after the close of trading on May 27, 2026. Resolution is determined by the official minimum temperature recorded for Washington DC on that date. The outcome is verified against authoritative weather data sources to confirm which temperature bracket the actual low falls into. Once verified, the corresponding contract settles to 100 cents and all other contracts settle to zero, distributing winnings to traders who held the correct outcome.

Several factors could shift odds for this temperature event. Major weather pattern changes, such as shifts in the jet stream or development of high-pressure or low-pressure systems, will influence trader expectations. Updated seasonal forecasts from meteorological agencies, historical temperature anomalies, and climate indices like the North Atlantic Oscillation can trigger repricing. As May 27 approaches, short-term weather models become more reliable, typically causing sharper price movements. Unusual atmospheric events or early heat waves or cold snaps in spring could also signal changing probabilities for the minimum temperature outcome.