Official temperature observations from Environment Canada stations in Toronto confirmed a daily maximum of 26°C on June 12, producing the market's unanimous 100% consensus on that exact outcome. Clear to partly cloudy conditions and moderate humidity limited further warming, consistent with regional climatology for mid-June where typical highs range from 23–27°C. Verified station data, rather than models, resolved the market with no reported discrepancies across monitoring networks. Similar temperature markets hinge on post-event official readings, which can shift only if quality-control revisions emerge in subsequent days.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Toronto on June 12?
26°C 100.0%
27°C <1%
20°C or below <1%
21°C <1%
$45,466 Vol.
$45,466 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C or higher
No
26°C 100.0%
27°C <1%
20°C or below <1%
21°C <1%
$45,466 Vol.
$45,466 Vol.
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C or higher
No
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.
Market Opened: Jun 10, 2026, 9:03 PM ET
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official temperature observations from Environment Canada stations in Toronto confirmed a daily maximum of 26°C on June 12, producing the market's unanimous 100% consensus on that exact outcome. Clear to partly cloudy conditions and moderate humidity limited further warming, consistent with regional climatology for mid-June where typical highs range from 23–27°C. Verified station data, rather than models, resolved the market with no reported discrepancies across monitoring networks. Similar temperature markets hinge on post-event official readings, which can shift only if quality-control revisions emerge in subsequent days.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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