Official observations from Environment Canada and Toronto-area weather stations recorded a daily maximum of 24°C on August 15, 2026, driving the market's 100% implied probability for that exact outcome. This aligns with regional conditions featuring moderate southerly flow and limited daytime heating under partly cloudy skies, keeping highs near or below seasonal averages without significant advection of warmer air masses. Forecaster model consensus had anticipated similar values, and final verified data eliminated uncertainty around measurement thresholds or station discrepancies. While rare post-publication revisions could theoretically shift resolution, historical precedents show Environment Canada data as highly stable once released, reinforcing trader consensus backed by real capital at stake.
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 15?
Highest temperature in Toronto on August 15?
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$38,486 Vol.
$38,486 Vol.
Aug 15, 2026
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C
No
26°C
No
27°C
No
28°C
No
29°C or higher
No
24°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$38,486 Vol.
$38,486 Vol.
Aug 15, 2026
19°C or below
$107 Vol.
No
20°C
$99 Vol.
No
21°C
$821 Vol.
No
22°C
$1,001 Vol.
No
23°C
$3,280 Vol.
No
24°C
$9,458 Vol.
Yes
25°C
$6,400 Vol.
No
26°C
$11,040 Vol.
No
27°C
$4,220 Vol.
No
28°C
$1,840 Vol.
No
29°C or higher
$221 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 15 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 and Toronto-area weather stations recorded a daily maximum of 24°C on August 15, 2026, driving the market's 100% implied probability for that exact outcome. This aligns with regional conditions featuring moderate southerly flow and limited daytime heating under partly cloudy skies, keeping highs near or below seasonal averages without significant advection of warmer air masses. Forecaster model consensus had anticipated similar values, and final verified data eliminated uncertainty around measurement thresholds or station discrepancies. While rare post-publication revisions could theoretically shift resolution, historical precedents show Environment Canada data as highly stable once released, reinforcing trader consensus backed by real capital at stake.
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 15 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 15 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 13, 2026, 8:55 PM ET
Volume
$38,486End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 8:55 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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 15 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 and Toronto-area weather stations recorded a daily maximum of 24°C on August 15, 2026, driving the market's 100% implied probability for that exact outcome. This aligns with regional conditions featuring moderate southerly flow and limited daytime heating under partly cloudy skies, keeping highs near or below seasonal averages without significant advection of warmer air masses. Forecaster model consensus had anticipated similar values, and final verified data eliminated uncertainty around measurement thresholds or station discrepancies. While rare post-publication revisions could theoretically shift resolution, historical precedents show Environment Canada data as highly stable once released, reinforcing trader consensus backed by real capital at stake.
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 15 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 15 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
$38,486End Date
Aug 15, 2026Market Opened
Aug 13, 2026, 8:55 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Official observations from Environment Canada and Toronto-area weather stations recorded a daily maximum of 24°C on August 15, 2026, driving the market's 100% implied probability for that exact outcome. This aligns with regional conditions featuring moderate southerly flow and limited daytime heating under partly cloudy skies, keeping highs near or below seasonal averages without significant advection of warmer air masses. Forecaster model consensus had anticipated similar values, and final verified data eliminated uncertainty around measurement thresholds or station discrepancies. While rare post-publication revisions could theoretically shift resolution, historical precedents show Environment Canada data as highly stable once released, reinforcing trader consensus backed by real capital at stake.
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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