Recent official forecasts from Environment Canada and global models indicate a partly cloudy day with a high near 25–26°C for Toronto on September 4, supported by post-frontal clearing, light northerly winds, and moderate solar heating after earlier showers. This places the maximum close to the 1991–2020 average of 24.1°C while remaining well below historical extremes above 30°C. Trader consensus clusters tightly on 25–26°C because small differences in cloud timing, boundary-layer mixing, or afternoon wind shifts can shift the peak by 1°C, with low precipitation risk reducing downward bias. New model runs and agency updates through September 3 will likely refine these probabilities ahead of market 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 September 4?
Highest temperature in Toronto on September 4?
26°C 35%
25°C 29%
27°C 17%
24°C 13%
NEW
NEW
Sep 4, 2026
21°C or below
6%
22°C
5%
23°C
6%
24°C
13%
25°C
29%
26°C
35%
27°C
17%
28°C
4%
29°C
3%
30°C
2%
31°C or higher
4%
26°C 35%
25°C 29%
27°C 17%
24°C 13%
NEW
NEW
Sep 4, 2026
21°C or below
$0 Vol.
6%
22°C
$0 Vol.
5%
23°C
$0 Vol.
6%
24°C
$169 Vol.
13%
25°C
$43 Vol.
29%
26°C
$17 Vol.
35%
27°C
$170 Vol.
17%
28°C
$32 Vol.
4%
29°C
$30 Vol.
3%
30°C
$128 Vol.
2%
31°C or higher
$0 Vol.
4%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Recent official forecasts from Environment Canada and global models indicate a partly cloudy day with a high near 25–26°C for Toronto on September 4, supported by post-frontal clearing, light northerly winds, and moderate solar heating after earlier showers. This places the maximum close to the 1991–2020 average of 24.1°C while remaining well below historical extremes above 30°C. Trader consensus clusters tightly on 25–26°C because small differences in cloud timing, boundary-layer mixing, or afternoon wind shifts can shift the peak by 1°C, with low precipitation risk reducing downward bias. New model runs and agency updates through September 3 will likely refine these probabilities ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 2, 2026, 8:55 AM ET
Volume
$590End Date
Sep 4, 2026Market Opened
Sep 2, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Recent official forecasts from Environment Canada and global models indicate a partly cloudy day with a high near 25–26°C for Toronto on September 4, supported by post-frontal clearing, light northerly winds, and moderate solar heating after earlier showers. This places the maximum close to the 1991–2020 average of 24.1°C while remaining well below historical extremes above 30°C. Trader consensus clusters tightly on 25–26°C because small differences in cloud timing, boundary-layer mixing, or afternoon wind shifts can shift the peak by 1°C, with low precipitation risk reducing downward bias. New model runs and agency updates through September 3 will likely refine these probabilities ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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
$590End Date
Sep 4, 2026Market Opened
Sep 2, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent official forecasts from Environment Canada and global models indicate a partly cloudy day with a high near 25–26°C for Toronto on September 4, supported by post-frontal clearing, light northerly winds, and moderate solar heating after earlier showers. This places the maximum close to the 1991–2020 average of 24.1°C while remaining well below historical extremes above 30°C. Trader consensus clusters tightly on 25–26°C because small differences in cloud timing, boundary-layer mixing, or afternoon wind shifts can shift the peak by 1°C, with low precipitation risk reducing downward bias. New model runs and agency updates through September 3 will likely refine these probabilities ahead of market 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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