Recent forecasts from Environment Canada and other models point to an overnight low near 10–11°C in Toronto on September 20, driven by mostly clear to partly cloudy skies, northerly winds of 15–25 km/h promoting mixing, and a dew point around 5–8°C that limits further cooling. Radiative cooling under reduced cloud cover allows surface temperatures to drop efficiently after sunset, while the urban heat island effect and proximity to Lake Ontario may moderate extremes compared to rural sites. Historical September averages near 13°C provide context, but the current pattern favors readings at or below 12°C. Market-implied odds clustering around 12–13°C reflect trader assessment of minor forecast spreads and potential for slight revisions in final observations from official stations.
基於Polymarket數據的AI實驗性摘要。這不是交易建議，也不影響該市場的結算方式。 · 更新於9月20日多倫多氣溫最低？
9月20日多倫多氣溫最低？
12°C 100%
11°C 90%
8°C或以下 49%
10°C 20%
$169 交易量
$169 交易量
2026-09-20
8°C或以下
49%
9°C
12%
10°C
20%
11°C
90%
12°C
100%
13°C
-
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C或以上
<1%
12°C 100%
11°C 90%
8°C或以下 49%
10°C 20%
$169 交易量
$169 交易量
2026-09-20
8°C或以下
$0 交易量
49%
9°C
$15 交易量
12%
10°C
$15 交易量
20%
11°C
$5 交易量
90%
12°C
$5 交易量
100%
13°C
$9 交易量
-
14°C
$27 交易量
<1%
15°C
$22 交易量
<1%
16°C
$22 交易量
<1%
17°C
$22 交易量
<1%
18°C或以上
$27 交易量
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 20 Sep '26.
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.Recent forecasts from Environment Canada and other models point to an overnight low near 10–11°C in Toronto on September 20, driven by mostly clear to partly cloudy skies, northerly winds of 15–25 km/h promoting mixing, and a dew point around 5–8°C that limits further cooling. Radiative cooling under reduced cloud cover allows surface temperatures to drop efficiently after sunset, while the urban heat island effect and proximity to Lake Ontario may moderate extremes compared to rural sites. Historical September averages near 13°C provide context, but the current pattern favors readings at or below 12°C. Market-implied odds clustering around 12–13°C reflect trader assessment of minor forecast spreads and potential for slight revisions in final observations from official stations.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
市場開放時間： Sep 18, 2026, 8:29 AM ET
交易量
$169結束日期
2026-09-20市場開放時間
Sep 18, 2026, 8:29 AM ETThis market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 20 Sep '26.
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.Recent forecasts from Environment Canada and other models point to an overnight low near 10–11°C in Toronto on September 20, driven by mostly clear to partly cloudy skies, northerly winds of 15–25 km/h promoting mixing, and a dew point around 5–8°C that limits further cooling. Radiative cooling under reduced cloud cover allows surface temperatures to drop efficiently after sunset, while the urban heat island effect and proximity to Lake Ontario may moderate extremes compared to rural sites. Historical September averages near 13°C provide context, but the current pattern favors readings at or below 12°C. Market-implied odds clustering around 12–13°C reflect trader assessment of minor forecast spreads and potential for slight revisions in final observations from official stations.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
交易量
$169結束日期
2026-09-20市場開放時間
Sep 18, 2026, 8:29 AM ETRecent forecasts from Environment Canada and other models point to an overnight low near 10–11°C in Toronto on September 20, driven by mostly clear to partly cloudy skies, northerly winds of 15–25 km/h promoting mixing, and a dew point around 5–8°C that limits further cooling. Radiative cooling under reduced cloud cover allows surface temperatures to drop efficiently after sunset, while the urban heat island effect and proximity to Lake Ontario may moderate extremes compared to rural sites. Historical September averages near 13°C provide context, but the current pattern favors readings at or below 12°C. Market-implied odds clustering around 12–13°C reflect trader assessment of minor forecast spreads and potential for slight revisions in final observations from official stations.
基於Polymarket數據的AI實驗性摘要。這不是交易建議，也不影響該市場的結算方式。 · 更新於
警惕外部連結哦。
警惕外部連結哦。
Frequently Asked Questions