Environment Canada’s official forecast for Toronto on August 11 calls for sunny skies and a daytime high of 28°C, supported by strong solar insolation under clear conditions that favor surface heating. Ensemble guidance shows modest spread, with some runs near 27°C if boundary-layer mixing or light winds limit peak values, while drier air masses could briefly support 29°C. Typical mid-August climatology for the region centers around 24–26°C, making the current setup notably warmer. Trader odds cluster tightly around 27–29°C because resolution hinges on the precise daily maximum recorded at official stations such as Toronto Pearson, where small forecast adjustments or local urban-heat effects can shift the outcome by a degree. Updated model runs and the final observation will determine the result.
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 11?
Highest temperature in Toronto on August 11?
28°C 42%
27°C 27%
29°C 21%
26°C 12%
NEW
NEW
Aug 11, 2026
21°C or below
<1%
22°C
<1%
23°C
1%
24°C
1%
25°C
2%
26°C
12%
27°C
27%
28°C
42%
29°C
21%
30°C
5%
31°C or higher
2%
28°C 42%
27°C 27%
29°C 21%
26°C 12%
NEW
NEW
Aug 11, 2026
21°C or below
$12 Vol.
<1%
22°C
$12 Vol.
<1%
23°C
$12 Vol.
1%
24°C
$12 Vol.
1%
25°C
$42 Vol.
2%
26°C
$7 Vol.
12%
27°C
$0 Vol.
27%
28°C
$15 Vol.
42%
29°C
$1 Vol.
21%
30°C
$4 Vol.
5%
31°C or higher
$5 Vol.
2%
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 11 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.Environment Canada’s official forecast for Toronto on August 11 calls for sunny skies and a daytime high of 28°C, supported by strong solar insolation under clear conditions that favor surface heating. Ensemble guidance shows modest spread, with some runs near 27°C if boundary-layer mixing or light winds limit peak values, while drier air masses could briefly support 29°C. Typical mid-August climatology for the region centers around 24–26°C, making the current setup notably warmer. Trader odds cluster tightly around 27–29°C because resolution hinges on the precise daily maximum recorded at official stations such as Toronto Pearson, where small forecast adjustments or local urban-heat effects can shift the outcome by a degree. Updated model runs and the final observation will determine the result.
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 11 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 11 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 9, 2026, 9:03 PM ET
Volume
$122End Date
Aug 11, 2026Market Opened
Aug 9, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...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 11 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.Environment Canada’s official forecast for Toronto on August 11 calls for sunny skies and a daytime high of 28°C, supported by strong solar insolation under clear conditions that favor surface heating. Ensemble guidance shows modest spread, with some runs near 27°C if boundary-layer mixing or light winds limit peak values, while drier air masses could briefly support 29°C. Typical mid-August climatology for the region centers around 24–26°C, making the current setup notably warmer. Trader odds cluster tightly around 27–29°C because resolution hinges on the precise daily maximum recorded at official stations such as Toronto Pearson, where small forecast adjustments or local urban-heat effects can shift the outcome by a degree. Updated model runs and the final observation will determine the result.
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 11 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 11 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
$122End Date
Aug 11, 2026Market Opened
Aug 9, 2026, 9:03 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Environment Canada’s official forecast for Toronto on August 11 calls for sunny skies and a daytime high of 28°C, supported by strong solar insolation under clear conditions that favor surface heating. Ensemble guidance shows modest spread, with some runs near 27°C if boundary-layer mixing or light winds limit peak values, while drier air masses could briefly support 29°C. Typical mid-August climatology for the region centers around 24–26°C, making the current setup notably warmer. Trader odds cluster tightly around 27–29°C because resolution hinges on the precise daily maximum recorded at official stations such as Toronto Pearson, where small forecast adjustments or local urban-heat effects can shift the outcome by a degree. Updated model runs and the final observation will determine the result.
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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