Official observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on April 13, 2026, peaked at 21°C amid mostly cloudy skies and scattered showers, limiting solar insolation and aligning precisely with forecast model consensus from the prior 48 hours that projected daytime highs in the low 20s Celsius. Hourly readings throughout the afternoon stabilized around this mark, with no spikes above due to cool northerly winds and high cloud cover, driving trader consensus to 100% implied probability on 21°C as real-time data validated the outcome. While data revisions for instrument calibration errors are theoretically possible, they are exceedingly rare for established automated stations, solidifying this positioning absent extraordinary discrepancies.
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 April 13?
Highest temperature in Toronto on April 13?
21°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$198,932 Vol.
$198,932 Vol.
14°C or below
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C or higher
No
21°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$198,932 Vol.
$198,932 Vol.
14°C or below
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°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 by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 9, 2026, 12:08 AM 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 by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on April 13, 2026, peaked at 21°C amid mostly cloudy skies and scattered showers, limiting solar insolation and aligning precisely with forecast model consensus from the prior 48 hours that projected daytime highs in the low 20s Celsius. Hourly readings throughout the afternoon stabilized around this mark, with no spikes above due to cool northerly winds and high cloud cover, driving trader consensus to 100% implied probability on 21°C as real-time data validated the outcome. While data revisions for instrument calibration errors are theoretically possible, they are exceedingly rare for established automated stations, solidifying this positioning absent extraordinary discrepancies.
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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