Official Environment Canada forecasts for September 6 point to a mainly cloudy day with a daytime high of 24°C and humidex values near 29, driven by moderate southerly flow and elevated moisture that limits full solar heating. This aligns closely with the long-term average high of 23.8°C for the date while recent model runs show minor spreads between 21–24°C depending on exact cloud cover and wind shifts. Trader emphasis on the 23°C outcome reflects assessment of these variables and the slim odds of brief clearing pushing readings higher. Updated model guidance and morning observations will provide the next key data points for 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 6?
23°C 51%
22°C 26%
24°C 19%
21°C 5%
$10,897 Vol.
$10,897 Vol.
19°C or below
<1%
20°C
3%
21°C
5%
22°C
26%
23°C
51%
24°C
19%
25°C
3%
26°C
<1%
27°C
<1%
28°C
<1%
29°C or higher
<1%
23°C 51%
22°C 26%
24°C 19%
21°C 5%
$10,897 Vol.
$10,897 Vol.
19°C or below
<1%
20°C
3%
21°C
5%
22°C
26%
23°C
51%
24°C
19%
25°C
3%
26°C
<1%
27°C
<1%
28°C
<1%
29°C or higher
<1%
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 4, 2026, 8:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Official Environment Canada forecasts for September 6 point to a mainly cloudy day with a daytime high of 24°C and humidex values near 29, driven by moderate southerly flow and elevated moisture that limits full solar heating. This aligns closely with the long-term average high of 23.8°C for the date while recent model runs show minor spreads between 21–24°C depending on exact cloud cover and wind shifts. Trader emphasis on the 23°C outcome reflects assessment of these variables and the slim odds of brief clearing pushing readings higher. Updated model guidance and morning observations will provide the next key data points for 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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