Chicago's weather in mid-April is transitional spring, with typical high temperatures ranging from the mid-50s to low-60s Fahrenheit depending on prevailing weather patterns and frontal systems. On April 20, 2026, traders are predicting whether the day's highest temperature will fall within a narrow band of 64-65°F—a precise forecast that requires specific meteorological alignment. This specific temperature range is slightly warmer than typical mid-April weather in Chicago, making it a meaningful prediction. The 0% current odds indicate that traders collectively believe this exact temperature range is unlikely to occur, reflecting strong confidence that Chicago will experience either cooler or warmer conditions on that date. The market will resolve based on official National Weather Service data for Chicago, making this a fully resolvable and transparent prediction. Temperature ranges this narrow require near-perfect alignment of atmospheric conditions. This daily weather prediction market is part of recurring temperature-band markets across multiple US cities, allowing traders to speculate on precise weather outcomes. With $7,828 in available liquidity, there is sufficient market depth for traders to adjust positions as updated weather forecasts become available throughout the coming days.