Recent model consensus from GFS and Environment Canada points to a minimum near 10–12°C on September 21 under northeasterly flow and persistent cloud cover, limiting radiative cooling while suppressing daytime heating. This setup keeps the most probable overnight low in the 9–13°C range, yet ensemble spreads allow for either stronger cold advection dropping readings below 4°C or clearer skies permitting a milder 14°C floor. Trader sentiment remains evenly split because resolution hinges on the final observed low at Pearson Airport, with fresh model runs and official guidance expected to tighten the range ahead of the 24-hour verification window. Historical September minima near 12.7°C provide context but offer limited guidance given the current synoptic variability.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoTemperatura mais baixa em Toronto no dia 21 de setembro?
4°C ou menos 99%
14°C ou mais 98%
9°C 40%
5°C 38%
4°C ou menos
99%
5°C
38%
6°C
38%
7°C
38%
8°C
38%
9°C
40%
10°C
21%
11°C
19%
12°C
38%
13°C
38%
14°C ou mais
98%
4°C ou menos 99%
14°C ou mais 98%
9°C 40%
5°C 38%
4°C ou menos
99%
5°C
38%
6°C
38%
7°C
38%
8°C
38%
9°C
40%
10°C
21%
11°C
19%
12°C
38%
13°C
38%
14°C ou mais
98%
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.
Mercado Aberto: Sep 19, 2026, 8:29 AM ET
Fonte de resolução
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.
Fonte de resolução
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent model consensus from GFS and Environment Canada points to a minimum near 10–12°C on September 21 under northeasterly flow and persistent cloud cover, limiting radiative cooling while suppressing daytime heating. This setup keeps the most probable overnight low in the 9–13°C range, yet ensemble spreads allow for either stronger cold advection dropping readings below 4°C or clearer skies permitting a milder 14°C floor. Trader sentiment remains evenly split because resolution hinges on the final observed low at Pearson Airport, with fresh model runs and official guidance expected to tighten the range ahead of the 24-hour verification window. Historical September minima near 12.7°C provide context but offer limited guidance given the current synoptic variability.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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