Current forecasts from Environment Canada and supporting models indicate a mix of sun and cloud for Toronto on August 3, supporting a daytime high near 26°C, which underpins the market's tight clustering around 25–27°C outcomes. Scientific factors differentiating these include variable afternoon cloud cover that can suppress peak heating by 1–2°C, surface wind patterns influencing mixing, and slight model spread in boundary-layer moisture and timing of maximum insolation. With climatological normals near 27°C and no strong high-pressure ridge or heat advection expected, traders weigh the balance between partial clearing that could push toward 27°C versus persistent cloud limiting it to 25°C. Updated model runs and official briefings in the final 24 hours will likely refine these probabilities before resolution.
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 3?
Highest temperature in Toronto on August 3?
26°C 41%
27°C 22%
25°C 20%
28°C 10%
NEW
NEW
Aug 3, 2026
21°C or below
1%
22°C
1%
23°C
5%
24°C
7%
25°C
20%
26°C
41%
27°C
22%
28°C
10%
29°C
7%
30°C
3%
31°C or higher
1%
26°C 41%
27°C 22%
25°C 20%
28°C 10%
NEW
NEW
Aug 3, 2026
21°C or below
$5 Vol.
1%
22°C
$5 Vol.
1%
23°C
$1 Vol.
5%
24°C
$0 Vol.
7%
25°C
$103 Vol.
20%
26°C
$20 Vol.
41%
27°C
$7 Vol.
22%
28°C
$0 Vol.
10%
29°C
$5 Vol.
7%
30°C
$15 Vol.
3%
31°C or higher
$27 Vol.
1%
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 3 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.Current forecasts from Environment Canada and supporting models indicate a mix of sun and cloud for Toronto on August 3, supporting a daytime high near 26°C, which underpins the market's tight clustering around 25–27°C outcomes. Scientific factors differentiating these include variable afternoon cloud cover that can suppress peak heating by 1–2°C, surface wind patterns influencing mixing, and slight model spread in boundary-layer moisture and timing of maximum insolation. With climatological normals near 27°C and no strong high-pressure ridge or heat advection expected, traders weigh the balance between partial clearing that could push toward 27°C versus persistent cloud limiting it to 25°C. Updated model runs and official briefings in the final 24 hours will likely refine these probabilities before resolution.
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 3 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.
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 1, 2026, 10:02 PM ET
Volume
$188End Date
Aug 3, 2026Market Opened
Aug 1, 2026, 10:02 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...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 3 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.Current forecasts from Environment Canada and supporting models indicate a mix of sun and cloud for Toronto on August 3, supporting a daytime high near 26°C, which underpins the market's tight clustering around 25–27°C outcomes. Scientific factors differentiating these include variable afternoon cloud cover that can suppress peak heating by 1–2°C, surface wind patterns influencing mixing, and slight model spread in boundary-layer moisture and timing of maximum insolation. With climatological normals near 27°C and no strong high-pressure ridge or heat advection expected, traders weigh the balance between partial clearing that could push toward 27°C versus persistent cloud limiting it to 25°C. Updated model runs and official briefings in the final 24 hours will likely refine these probabilities before resolution.
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 3 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.
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
$188End Date
Aug 3, 2026Market Opened
Aug 1, 2026, 10:02 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Current forecasts from Environment Canada and supporting models indicate a mix of sun and cloud for Toronto on August 3, supporting a daytime high near 26°C, which underpins the market's tight clustering around 25–27°C outcomes. Scientific factors differentiating these include variable afternoon cloud cover that can suppress peak heating by 1–2°C, surface wind patterns influencing mixing, and slight model spread in boundary-layer moisture and timing of maximum insolation. With climatological normals near 27°C and no strong high-pressure ridge or heat advection expected, traders weigh the balance between partial clearing that could push toward 27°C versus persistent cloud limiting it to 25°C. Updated model runs and official briefings in the final 24 hours will likely refine these probabilities before resolution.
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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