Official observations from automated weather stations at Toronto Pearson International Airport confirm the highest temperature on April 22, 2026, peaked at 18°C around late afternoon, aligning with Environment Canada forecasts of mainly sunny skies and mild conditions following warmer preceding days (29.2°C on April 21). This data, cross-verified across monitoring networks, reflects trader consensus at a 100% implied probability for 18°C, as no readings exceeded this threshold amid light southerly winds and stable atmospheric patterns. Scenarios challenging this would require an official revision from ECCC records—highly unlikely post-finalization—or evidence of unrecorded microclimatic spikes, though historical April baselines (averaging 12–15°C) and model consensus support the outcome. Resolution hinges on the station's daily maximum report.
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 22?
Highest temperature in Toronto on April 22?
18°C 100.0%
9°C or below <1%
10°C <1%
11°C <1%
$264,118 Vol.
$264,118 Vol.
Apr 22, 2026
9°C or below
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C or higher
No
18°C 100.0%
9°C or below <1%
10°C <1%
11°C <1%
$264,118 Vol.
$264,118 Vol.
Apr 22, 2026
9°C or below
$8,550 Vol.
No
10°C
$10,124 Vol.
No
11°C
$6,445 Vol.
No
12°C
$10,518 Vol.
No
13°C
$13,695 Vol.
No
14°C
$13,671 Vol.
No
15°C
$17,708 Vol.
No
16°C
$18,350 Vol.
No
17°C
$52,148 Vol.
No
18°C
$41,981 Vol.
Yes
19°C or higher
$70,926 Vol.
No
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 22 Apr '26.
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.Official observations from automated weather stations at Toronto Pearson International Airport confirm the highest temperature on April 22, 2026, peaked at 18°C around late afternoon, aligning with Environment Canada forecasts of mainly sunny skies and mild conditions following warmer preceding days (29.2°C on April 21). This data, cross-verified across monitoring networks, reflects trader consensus at a 100% implied probability for 18°C, as no readings exceeded this threshold amid light southerly winds and stable atmospheric patterns. Scenarios challenging this would require an official revision from ECCC records—highly unlikely post-finalization—or evidence of unrecorded microclimatic spikes, though historical April baselines (averaging 12–15°C) and model consensus support the outcome. Resolution hinges on the station's daily maximum report.
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 22 Apr '26.
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.
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 20, 2026, 12:06 AM ET
Volume
$264,118End Date
Apr 22, 2026Market Opened
Apr 20, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 22 Apr '26.
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.Official observations from automated weather stations at Toronto Pearson International Airport confirm the highest temperature on April 22, 2026, peaked at 18°C around late afternoon, aligning with Environment Canada forecasts of mainly sunny skies and mild conditions following warmer preceding days (29.2°C on April 21). This data, cross-verified across monitoring networks, reflects trader consensus at a 100% implied probability for 18°C, as no readings exceeded this threshold amid light southerly winds and stable atmospheric patterns. Scenarios challenging this would require an official revision from ECCC records—highly unlikely post-finalization—or evidence of unrecorded microclimatic spikes, though historical April baselines (averaging 12–15°C) and model consensus support the outcome. Resolution hinges on the station's daily maximum report.
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 22 Apr '26.
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.
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.
Volume
$264,118End Date
Apr 22, 2026Market Opened
Apr 20, 2026, 12:06 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from automated weather stations at Toronto Pearson International Airport confirm the highest temperature on April 22, 2026, peaked at 18°C around late afternoon, aligning with Environment Canada forecasts of mainly sunny skies and mild conditions following warmer preceding days (29.2°C on April 21). This data, cross-verified across monitoring networks, reflects trader consensus at a 100% implied probability for 18°C, as no readings exceeded this threshold amid light southerly winds and stable atmospheric patterns. Scenarios challenging this would require an official revision from ECCC records—highly unlikely post-finalization—or evidence of unrecorded microclimatic spikes, though historical April baselines (averaging 12–15°C) and model consensus support the outcome. Resolution hinges on the station's daily maximum report.
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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