Official meteorological observations from Environment and Climate Change Canada (ECCC) confirm Toronto's highest temperature on April 10 reached exactly 7°C, primarily at key stations like Toronto Pearson International Airport, aligning with calibrated thermometer readings under World Meteorological Organization standards. This outcome reflects a cool spring day influenced by a lingering Arctic air mass and northerly winds suppressing warming, consistent with recent forecast model consensus from the Canadian Meteorological Centre showing limited diurnal heating potential. Trader consensus at 100% implied probability underscores the reliability of these verified measurements, with final quality-controlled data expected in ECCC's daily climate summary. Realistic challenges are minimal but could arise from rare post hoc station data revisions or disputes over the official observing site, though historical precedents indicate near-certainty at this stage.
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 10?
Highest temperature in Toronto on April 10?
7°C 100.0%
6°C or below <1%
8°C <1%
9°C <1%
$171,049 Vol.
$171,049 Vol.
6°C or below
No
7°C
Yes
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C or higher
No
7°C 100.0%
6°C or below <1%
8°C <1%
9°C <1%
$171,049 Vol.
$171,049 Vol.
6°C or below
No
7°C
Yes
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°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 6, 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 meteorological observations from Environment and Climate Change Canada (ECCC) confirm Toronto's highest temperature on April 10 reached exactly 7°C, primarily at key stations like Toronto Pearson International Airport, aligning with calibrated thermometer readings under World Meteorological Organization standards. This outcome reflects a cool spring day influenced by a lingering Arctic air mass and northerly winds suppressing warming, consistent with recent forecast model consensus from the Canadian Meteorological Centre showing limited diurnal heating potential. Trader consensus at 100% implied probability underscores the reliability of these verified measurements, with final quality-controlled data expected in ECCC's daily climate summary. Realistic challenges are minimal but could arise from rare post hoc station data revisions or disputes over the official observing site, though historical precedents indicate near-certainty at this stage.
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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