Official hourly observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on May 9, 2026, peaked at 16°C around midday, aligning with trader consensus at nearly 100% implied probability. A passing cold front brought persistent cloud cover, scattered showers, and gusty northwest winds up to 30 km/h, suppressing daytime heating despite brief sunny intervals—conditions forecasted by ECCC models days prior. This outcome sits slightly below the early May climatological average of 17–18°C, reflecting typical spring variability in the Great Lakes region. Resolution awaits final data validation, though revisions are rare for established airport stations; an unlikely sensor anomaly or measurement dispute could prompt review.
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 May 9?
Highest temperature in Toronto on May 9?
16°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$86,633 Vol.
$86,633 Vol.
May 9, 2026
7°C or below
No
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
Yes
17°C or higher
No
16°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$86,633 Vol.
$86,633 Vol.
May 9, 2026
7°C or below
$3,783 Vol.
No
8°C
$2,446 Vol.
No
9°C
$1,794 Vol.
No
10°C
$5,021 Vol.
No
11°C
$5,557 Vol.
No
12°C
$6,056 Vol.
No
13°C
$8,219 Vol.
No
14°C
$7,727 Vol.
No
15°C
$7,981 Vol.
No
16°C
$21,282 Vol.
Yes
17°C or higher
$16,768 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 9 May '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 hourly observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on May 9, 2026, peaked at 16°C around midday, aligning with trader consensus at nearly 100% implied probability. A passing cold front brought persistent cloud cover, scattered showers, and gusty northwest winds up to 30 km/h, suppressing daytime heating despite brief sunny intervals—conditions forecasted by ECCC models days prior. This outcome sits slightly below the early May climatological average of 17–18°C, reflecting typical spring variability in the Great Lakes region. Resolution awaits final data validation, though revisions are rare for established airport stations; an unlikely sensor anomaly or measurement dispute could prompt review.
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 9 May '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: May 7, 2026, 12:12 AM ET
Volume
$86,633End Date
May 9, 2026Market Opened
May 7, 2026, 12:12 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 9 May '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 hourly observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on May 9, 2026, peaked at 16°C around midday, aligning with trader consensus at nearly 100% implied probability. A passing cold front brought persistent cloud cover, scattered showers, and gusty northwest winds up to 30 km/h, suppressing daytime heating despite brief sunny intervals—conditions forecasted by ECCC models days prior. This outcome sits slightly below the early May climatological average of 17–18°C, reflecting typical spring variability in the Great Lakes region. Resolution awaits final data validation, though revisions are rare for established airport stations; an unlikely sensor anomaly or measurement dispute could prompt review.
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 9 May '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
$86,633End Date
May 9, 2026Market Opened
May 7, 2026, 12:12 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official hourly observations from Environment and Climate Change Canada at Toronto Pearson International Airport confirm the highest temperature on May 9, 2026, peaked at 16°C around midday, aligning with trader consensus at nearly 100% implied probability. A passing cold front brought persistent cloud cover, scattered showers, and gusty northwest winds up to 30 km/h, suppressing daytime heating despite brief sunny intervals—conditions forecasted by ECCC models days prior. This outcome sits slightly below the early May climatological average of 17–18°C, reflecting typical spring variability in the Great Lakes region. Resolution awaits final data validation, though revisions are rare for established airport stations; an unlikely sensor anomaly or measurement dispute could prompt review.
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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