**Forecast model divergence and an incoming cooler northeasterly flow are driving the near-even split between sub-5°C and 14°C+ outcomes for Toronto’s September 21 minimum.** Current guidance from sources including Environment Canada and GFS-based runs points to a daytime high near 16°C under mostly cloudy skies, with the daily low likely occurring in the early morning hours amid 13–20 km/h northeast winds and high pressure building to around 1025 hPa. This setup favors moderate radiative cooling overnight, but small shifts in cloud cover or wind speed could push the minimum several degrees either way—explaining why specific bins like 10°C and 11°C each carry 20–24% implied probability. Historical September averages (around 13°C) provide context, yet the active pattern this week has produced larger day-to-day variability than typical late-summer conditions. Updated model runs and official briefings overnight will likely narrow the range before resolution.
基于Polymarket数据的AI实验性摘要。这不是交易建议,也不影响该市场的结算方式。 · 更新于9月21日多伦多最低气温?
4°C或以下 98%
14°C或更高 98%
7°C 40%
8°C 40%
4°C或以下
98%
5°C
18%
6°C
18%
7°C
40%
8°C
40%
9°C
40%
10°C
24%
11°C
22%
12°C
40%
13°C
18%
14°C或更高
98%
4°C或以下 98%
14°C或更高 98%
7°C 40%
8°C 40%
4°C或以下
98%
5°C
18%
6°C
18%
7°C
40%
8°C
40%
9°C
40%
10°C
24%
11°C
22%
12°C
40%
13°C
18%
14°C或更高
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.
市场开放时间: Sep 19, 2026, 8:29 AM ET
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.
**Forecast model divergence and an incoming cooler northeasterly flow are driving the near-even split between sub-5°C and 14°C+ outcomes for Toronto’s September 21 minimum.** Current guidance from sources including Environment Canada and GFS-based runs points to a daytime high near 16°C under mostly cloudy skies, with the daily low likely occurring in the early morning hours amid 13–20 km/h northeast winds and high pressure building to around 1025 hPa. This setup favors moderate radiative cooling overnight, but small shifts in cloud cover or wind speed could push the minimum several degrees either way—explaining why specific bins like 10°C and 11°C each carry 20–24% implied probability. Historical September averages (around 13°C) provide context, yet the active pattern this week has produced larger day-to-day variability than typical late-summer conditions. Updated model runs and official briefings overnight will likely narrow the range before resolution.
基于Polymarket数据的AI实验性摘要。这不是交易建议,也不影响该市场的结算方式。 · 更新于
警惕外部链接哦。
警惕外部链接哦。
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