Environment and Climate Change Canada's midday forecast, issued at 11:00 AM EDT on April 9, projects Toronto Pearson International Airport's daytime high at 18°C amid a mix of sun and cloud, with southwest winds of 30-50 km/h gusts delivering mild air well above the seasonal normal of 11°C. Observations already reached 17°C by mid-afternoon, aligning with model consensus from recent runs showing high-pressure ridging over southern Ontario favoring daytime heating. Trader sentiment at near-certainty for 18°C or higher reflects this observational and forecast agreement, backed by real-money positions. Realistic challenges include unexpected heavy showers suppressing peaks or a sudden cold front, though steering currents suggest low likelihood before evening cooldown. Final resolution hinges on official YYZ hourly data through midnight.
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 9?
18°C or higher 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$145,963 Vol.
$145,963 Vol.
8°C or below
No
9°C
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 or higher
Yes
18°C or higher 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$145,963 Vol.
$145,963 Vol.
8°C or below
No
9°C
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 or higher
Yes
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 5, 2026, 12:09 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
Environment and Climate Change Canada's midday forecast, issued at 11:00 AM EDT on April 9, projects Toronto Pearson International Airport's daytime high at 18°C amid a mix of sun and cloud, with southwest winds of 30-50 km/h gusts delivering mild air well above the seasonal normal of 11°C. Observations already reached 17°C by mid-afternoon, aligning with model consensus from recent runs showing high-pressure ridging over southern Ontario favoring daytime heating. Trader sentiment at near-certainty for 18°C or higher reflects this observational and forecast agreement, backed by real-money positions. Realistic challenges include unexpected heavy showers suppressing peaks or a sudden cold front, though steering currents suggest low likelihood before evening cooldown. Final resolution hinges on official YYZ hourly data through midnight.
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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