Official forecasts from Environment Canada project a mainly sunny high of 24°C for Toronto on September 7, supported by clearing conditions, light northwest winds, and building high pressure that limits cloud cover and promotes daytime warming. Model consensus aligns with this range, though slight variations in timing of any residual moisture or wind shifts could push readings to 25°C, consistent with market-implied odds favoring those two outcomes. The September 7 climatological average high near 23.7°C provides context for the modestly above-normal expectation, with no significant frontal systems or precipitation indicated in the latest guidance. Updated model runs and morning observations will refine the final maximum before 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 7?
25°C 53%
24°C 35%
26°C 10%
23°C 3%
$12,887 Vol.
$12,887 Vol.
20°C or below
<1%
21°C
<1%
22°C
2%
23°C
3%
24°C
35%
25°C
53%
26°C
10%
27°C
2%
28°C
<1%
29°C
<1%
30°C or higher
<1%
25°C 53%
24°C 35%
26°C 10%
23°C 3%
$12,887 Vol.
$12,887 Vol.
20°C or below
<1%
21°C
<1%
22°C
2%
23°C
3%
24°C
35%
25°C
53%
26°C
10%
27°C
2%
28°C
<1%
29°C
<1%
30°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 5, 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 forecasts from Environment Canada project a mainly sunny high of 24°C for Toronto on September 7, supported by clearing conditions, light northwest winds, and building high pressure that limits cloud cover and promotes daytime warming. Model consensus aligns with this range, though slight variations in timing of any residual moisture or wind shifts could push readings to 25°C, consistent with market-implied odds favoring those two outcomes. The September 7 climatological average high near 23.7°C provides context for the modestly above-normal expectation, with no significant frontal systems or precipitation indicated in the latest guidance. Updated model runs and morning observations will refine the final maximum before 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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