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 10, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 10 Jul '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 Celsius (eg, 9°C). 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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 10 Jul '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ. 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 Celsius (eg, 9°C). 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.
Prediction markets aggregate the collective judgment of many traders, often revealing signals that differ from traditional weather forecasts. While meteorologists rely on physics-based models and historical data, this market reflects real-money incentives—traders who misread conditions lose capital. Comparing the implied odds here to consensus analyst views can highlight where the market sees asymmetric risk. If traders are pricing a higher or lower probability than official forecasts suggest, it may signal either market insight or an opportunity for informed bettors.
This market resolves around Jul 10, 2026, once the highest temperature recorded in Toronto on July 10 is finalized and verifiable from credible public sources. The outcome is determined by comparing actual recorded temperatures against the specific thresholds defined in each contract. Resolution typically occurs within hours or a day after the event, once official data is confirmed. Traders holding the correct outcome receive their winnings, while incorrect positions expire worthless.
Weather model updates and seasonal forecasts are primary drivers—shifts in atmospheric patterns or tropical systems can significantly alter temperature expectations. Major weather alerts or heat advisories issued by meteorological agencies often trigger sharp price moves. As July 10 approaches, intraday forecasts become more precise, typically narrowing the range of plausible outcomes. Real-time conditions on the day itself, including cloud cover and wind patterns, will influence final prices. Breaking climate or weather news can also reshape trader sentiment weeks in advance.