Environment Canada's forecast issued early April 11 for Toronto Pearson International Airport—the market's resolution source—projects a high of 8°C on April 12 amid mainly cloudy skies with periods of rain from morning through late afternoon, accompanied by easterly winds gusting to 40 km/h that curb solar insolation and warm air advection. This aligns with trader consensus, where 7–9°C outcomes cluster at 20–22% implied probabilities, reflecting model agreement on a passing frontal system suppressing temperatures below the April climatological average of 12°C. Divergences arise from uncertainty in rain timing and cloud persistence: earlier clearing could boost peaks to 9–10°C via increased shortwave radiation, while prolonged overcast conditions, as hinted in The Weather Network's cooler 6°C outlook, favor 7°C or lower. Final hourly observations will resolve amid typical spring forecast spreads.
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 12?
Highest temperature in Toronto on April 12?
7°C 23.2%
8°C 23.0%
9°C 20.3%
11°C 12.0%
$40,104 Vol.
$40,104 Vol.
5°C or below
4%
6°C
8%
7°C
23%
8°C
23%
9°C
20%
10°C
12%
11°C
12%
12°C
4%
13°C
1%
14°C
1%
15°C or higher
1%
7°C 23.2%
8°C 23.0%
9°C 20.3%
11°C 12.0%
$40,104 Vol.
$40,104 Vol.
5°C or below
4%
6°C
8%
7°C
23%
8°C
23%
9°C
20%
10°C
12%
11°C
12%
12°C
4%
13°C
1%
14°C
1%
15°C or higher
1%
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 8, 2026, 12:08 AM ET
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...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...Environment Canada's forecast issued early April 11 for Toronto Pearson International Airport—the market's resolution source—projects a high of 8°C on April 12 amid mainly cloudy skies with periods of rain from morning through late afternoon, accompanied by easterly winds gusting to 40 km/h that curb solar insolation and warm air advection. This aligns with trader consensus, where 7–9°C outcomes cluster at 20–22% implied probabilities, reflecting model agreement on a passing frontal system suppressing temperatures below the April climatological average of 12°C. Divergences arise from uncertainty in rain timing and cloud persistence: earlier clearing could boost peaks to 9–10°C via increased shortwave radiation, while prolonged overcast conditions, as hinted in The Weather Network's cooler 6°C outlook, favor 7°C or lower. Final hourly observations will resolve amid typical spring forecast spreads.
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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