TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 12, 1:00 AM EST
Kalshi
This event group asks what the lowest temperature will be in Miami on July 12, 2026. Kalshi frames it as a yes/no on whether the minimum temperature falls into various ranges, while Polymarket structures it as a categorical question asking which specific temperature range will occur. Both use official weather data sources to determine the actual recorded low temperature.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 12 Jul '26. The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Miami Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution is determined by the minimum temperature recorded at Miami on July 11, 2026, according to the National Weather Service's Climatological Report (Daily), accessible via the Miami, FL location on the NWS website. The official temperature data from this source takes precedence over preliminary reports or third-party weather services. Temperature measurements may be subject to rounding and conversion nuances in preliminary NWS data, so traders should exercise caution when interpreting early reports and rely on the final NWS Climatological Report (Daily) for definitive resolution.
Prediction market prices often diverge from traditional weather forecasts because they reflect real financial incentives and crowd wisdom rather than single-model outputs. Traders who misread conditions lose money, creating pressure for accuracy that can sometimes outpace meteorological consensus. This market incorporates live updates, social signals, and heterogeneous beliefs—factors that weather models may weight differently or ignore entirely. While meteorologists rely on physics-based simulations, prediction markets blend those insights with trader intuition and risk appetite, occasionally surfacing early signals that formal forecasts have not yet captured.
Major weather pattern shifts, tropical system forecasts, and updated atmospheric models can all trigger sharp repricing in this market. If meteorologists issue revised outlooks showing cooler or warmer conditions ahead, traders will adjust positions accordingly. Real-time satellite data, upper-level wind patterns, and sea-surface temperatures in the Atlantic also influence expectations. Breaking news about heat domes, cold fronts, or moisture surges will likely spark trading spikes as participants reassess their odds. Closer to July 12, intraday forecasts and early-morning observations may drive final positioning as traders lock in their bets.