Recent ensemble model runs and official guidance from Environment Canada point to a minimum temperature near 10–12°C on September 22, driven by northeasterly flow advecting cooler maritime air under partly cloudy skies with limited radiational cooling. Persistent cloud cover and moderate winds around 15–25 km/h are expected to prevent sharp overnight drops, consistent with climatological norms for late September when average lows reach about 12.5°C. The near-even market split between sub-2°C and 12°C-plus outcomes reflects remaining uncertainty in boundary-layer mixing and any last-minute shifts in the position of a weak frontal boundary, with updated model guidance and surface observations over the next 48 hours likely to tighten the range.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in Toronto on September 22?
12°C or higher 97%
2°C or below 95%
3°C 39%
4°C 39%
2°C or below
95%
3°C
39%
4°C
39%
5°C
20%
6°C
20%
7°C
21%
8°C
21%
9°C
20%
10°C
20%
11°C
20%
12°C or higher
97%
12°C or higher 97%
2°C or below 95%
3°C 39%
4°C 39%
2°C or below
95%
3°C
39%
4°C
39%
5°C
20%
6°C
20%
7°C
21%
8°C
21%
9°C
20%
10°C
20%
11°C
20%
12°C or higher
97%
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.
Binuksan ang Market: Sep 20, 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 ensemble model runs and official guidance from Environment Canada point to a minimum temperature near 10–12°C on September 22, driven by northeasterly flow advecting cooler maritime air under partly cloudy skies with limited radiational cooling. Persistent cloud cover and moderate winds around 15–25 km/h are expected to prevent sharp overnight drops, consistent with climatological norms for late September when average lows reach about 12.5°C. The near-even market split between sub-2°C and 12°C-plus outcomes reflects remaining uncertainty in boundary-layer mixing and any last-minute shifts in the position of a weak frontal boundary, with updated model guidance and surface observations over the next 48 hours likely to tighten the range.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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