Official observations from Environment Canada confirm a daily maximum of 26°C at Toronto Pearson International Airport on August 16, 2026, under partly cloudy conditions with modest humidity and light winds that limited afternoon heating. This aligns closely with pre-event model consensus from the Global Deterministic Prediction System, which consistently projected a high near 25–26°C amid a stable post-frontal air mass. The 100% market-implied probability for 26°C reflects traders’ confidence in these verified station data, which serve as the resolution source. Only an unlikely revision to the official record—such as a station calibration error or boundary dispute over the reporting window—would alter the outcome, given the narrow spread between forecast guidance and final measurements.
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 August 16?
Highest temperature in Toronto on August 16?
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$38,055 Vol.
$38,055 Vol.
Aug 16, 2026
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$38,055 Vol.
$38,055 Vol.
Aug 16, 2026
22°C or below
$1,060 Vol.
No
23°C
$1,516 Vol.
No
24°C
$2,733 Vol.
No
25°C
$8,840 Vol.
No
26°C
$8,468 Vol.
Yes
27°C
$6,581 Vol.
No
28°C
$3,821 Vol.
No
29°C
$1,139 Vol.
No
30°C
$1,229 Vol.
No
31°C
$444 Vol.
No
32°C or higher
$2,224 Vol.
No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Official observations from Environment Canada confirm a daily maximum of 26°C at Toronto Pearson International Airport on August 16, 2026, under partly cloudy conditions with modest humidity and light winds that limited afternoon heating. This aligns closely with pre-event model consensus from the Global Deterministic Prediction System, which consistently projected a high near 25–26°C amid a stable post-frontal air mass. The 100% market-implied probability for 26°C reflects traders’ confidence in these verified station data, which serve as the resolution source. Only an unlikely revision to the official record—such as a station calibration error or boundary dispute over the reporting window—would alter the outcome, given the narrow spread between forecast guidance and final measurements.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 15, 2026, 4:01 PM ET
Volume
$38,055End Date
Aug 16, 2026Market Opened
Aug 15, 2026, 4:01 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 based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Official observations from Environment Canada confirm a daily maximum of 26°C at Toronto Pearson International Airport on August 16, 2026, under partly cloudy conditions with modest humidity and light winds that limited afternoon heating. This aligns closely with pre-event model consensus from the Global Deterministic Prediction System, which consistently projected a high near 25–26°C amid a stable post-frontal air mass. The 100% market-implied probability for 26°C reflects traders’ confidence in these verified station data, which serve as the resolution source. Only an unlikely revision to the official record—such as a station calibration error or boundary dispute over the reporting window—would alter the outcome, given the narrow spread between forecast guidance and final measurements.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
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 16 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$38,055End Date
Aug 16, 2026Market Opened
Aug 15, 2026, 4:01 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Environment Canada confirm a daily maximum of 26°C at Toronto Pearson International Airport on August 16, 2026, under partly cloudy conditions with modest humidity and light winds that limited afternoon heating. This aligns closely with pre-event model consensus from the Global Deterministic Prediction System, which consistently projected a high near 25–26°C amid a stable post-frontal air mass. The 100% market-implied probability for 26°C reflects traders’ confidence in these verified station data, which serve as the resolution source. Only an unlikely revision to the official record—such as a station calibration error or boundary dispute over the reporting window—would alter the outcome, given the narrow spread between forecast guidance and final measurements.
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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