Recent official forecasts from Environment Canada project a daytime high near 23°C and overnight low around 12°C for Toronto on September 6, driven by mostly clear skies and light northeasterly winds that favor radiative cooling after sunset. This aligns with early-September climatology, where average lows hover near 15.5°C, though model consensus shows modest spread from urban heat-island effects and slight variations in cloud cover that could push the minimum a degree or two higher. Trader sentiment remains balanced across the 12–16°C range because small forecast revisions or station-specific readings can shift the recorded low across closely spaced outcome thresholds, with cooler probabilities elevated by the potential for clear, calm conditions enhancing heat loss.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Toronto on September 6?
20°C or higher 64%
10°C or below 59%
13°C 48%
19°C 48%
10°C or below
59%
11°C
10%
12°C
12%
13°C
48%
14°C
24%
15°C
29%
16°C
33%
17°C
27%
18°C
41%
19°C
48%
20°C or higher
64%
20°C or higher 64%
10°C or below 59%
13°C 48%
19°C 48%
10°C or below
59%
11°C
10%
12°C
12%
13°C
48%
14°C
24%
15°C
29%
16°C
33%
17°C
27%
18°C
41%
19°C
48%
20°C or higher
64%
The resolution source for this market will be information from NOAA, specifically the lowest 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, 8:29 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 lowest 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...Recent official forecasts from Environment Canada project a daytime high near 23°C and overnight low around 12°C for Toronto on September 6, driven by mostly clear skies and light northeasterly winds that favor radiative cooling after sunset. This aligns with early-September climatology, where average lows hover near 15.5°C, though model consensus shows modest spread from urban heat-island effects and slight variations in cloud cover that could push the minimum a degree or two higher. Trader sentiment remains balanced across the 12–16°C range because small forecast revisions or station-specific readings can shift the recorded low across closely spaced outcome thresholds, with cooler probabilities elevated by the potential for clear, calm conditions enhancing heat loss.
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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