Environment Canada's observational data from Toronto Pearson International Airport—the official station for this market—confirms the highest temperature on April 1, 2026, reached exactly 10°C amid mostly cloudy skies, northerly winds gusting to 35 km/h, and scattered light showers that suppressed warming. This outcome reflects trader consensus on pre-event forecasts from Environment Canada and NOAA models, which projected seasonal highs of 7–10°C under a persistent cold air mass over southern Ontario, consistent with early April climatology where average daily maxima hover around 9–11°C. With data now finalized post-quality control, the 100% implied probability on 10°C is strongly supported; realistic challenges would require rare revisions from instrument recalibration or disputed hourly logs, though such events are minimal given standardized measurement protocols.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on April 1?
Highest temperature in Toronto on April 1?
10°C 100.0%
11°C <1%
12°C <1%
13°C <1%
$398,096 Vol.
$398,096 Vol.
Apr 1, 2026
10°C
100%
11°C
<1%
12°C
<1%
13°C
<1%
14°C or higher
<1%
10°C 100.0%
11°C <1%
12°C <1%
13°C <1%
$398,096 Vol.
$398,096 Vol.
Apr 1, 2026
10°C
$41,122 Vol.
100%
11°C
$14,358 Vol.
<1%
12°C
$14,319 Vol.
<1%
13°C
$13,321 Vol.
<1%
14°C or higher
$25,442 Vol.
<1%
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 1 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.Environment Canada's observational data from Toronto Pearson International Airport—the official station for this market—confirms the highest temperature on April 1, 2026, reached exactly 10°C amid mostly cloudy skies, northerly winds gusting to 35 km/h, and scattered light showers that suppressed warming. This outcome reflects trader consensus on pre-event forecasts from Environment Canada and NOAA models, which projected seasonal highs of 7–10°C under a persistent cold air mass over southern Ontario, consistent with early April climatology where average daily maxima hover around 9–11°C. With data now finalized post-quality control, the 100% implied probability on 10°C is strongly supported; realistic challenges would require rare revisions from instrument recalibration or disputed hourly logs, though such events are minimal given standardized measurement protocols.
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 1 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: Mar 29, 2026, 1:53 PM ET
Volume
$398,096End Date
Apr 1, 2026Market Opened
Mar 29, 2026, 1:53 PM 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 1 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.Environment Canada's observational data from Toronto Pearson International Airport—the official station for this market—confirms the highest temperature on April 1, 2026, reached exactly 10°C amid mostly cloudy skies, northerly winds gusting to 35 km/h, and scattered light showers that suppressed warming. This outcome reflects trader consensus on pre-event forecasts from Environment Canada and NOAA models, which projected seasonal highs of 7–10°C under a persistent cold air mass over southern Ontario, consistent with early April climatology where average daily maxima hover around 9–11°C. With data now finalized post-quality control, the 100% implied probability on 10°C is strongly supported; realistic challenges would require rare revisions from instrument recalibration or disputed hourly logs, though such events are minimal given standardized measurement protocols.
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 1 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
$398,096End Date
Apr 1, 2026Market Opened
Mar 29, 2026, 1:53 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Environment Canada's observational data from Toronto Pearson International Airport—the official station for this market—confirms the highest temperature on April 1, 2026, reached exactly 10°C amid mostly cloudy skies, northerly winds gusting to 35 km/h, and scattered light showers that suppressed warming. This outcome reflects trader consensus on pre-event forecasts from Environment Canada and NOAA models, which projected seasonal highs of 7–10°C under a persistent cold air mass over southern Ontario, consistent with early April climatology where average daily maxima hover around 9–11°C. With data now finalized post-quality control, the 100% implied probability on 10°C is strongly supported; realistic challenges would require rare revisions from instrument recalibration or disputed hourly logs, though such events are minimal given standardized measurement protocols.
Experimental AI-generated summary referencing Polymarket data · Updated
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