Persistent northeasterly flow behind a recent frontal passage continues to advect cooler maritime air into southern Ontario, with extensive stratiform cloud cover suppressing daytime insolation and limiting maximum temperatures for September 21 in Toronto. Official guidance from Environment Canada projects a high of 18 °C under a mix of sun and cloud, yet multiple GFS and ensemble runs converge on afternoon peaks of 15–16 °C amid sustained 20–25 km/h winds and near-total cloud cover. This narrow 1 °C spread between the leading market outcomes reflects modest differences in boundary-layer mixing, exact cloud optical thickness, and local lake-breeze modulation rather than larger-scale synoptic uncertainty. Traders appear to assign greater weight to the cooler model consensus than to the current official forecast, anticipating possible downward revisions in subsequent Environment Canada updates as new observational data and overnight model cycles arrive before resolution.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado¿La temperatura más alta en Toronto el 21 de septiembre?
¿La temperatura más alta en Toronto el 21 de septiembre?
16°C 38%
15°C 35%
14°C 12%
17°C 11%
NUEVO
NUEVO
21 sep 2026
11°C o menos
<1%
12°C
1%
13°C
2%
14°C
12%
15°C
35%
16°C
38%
17°C
11%
18°C
5%
19°C
1%
20°C
1%
21°C o más
<1%
16°C 38%
15°C 35%
14°C 12%
17°C 11%
NUEVO
NUEVO
21 sep 2026
11°C o menos
$135 Vol.
<1%
12°C
$204 Vol.
1%
13°C
$21 Vol.
2%
14°C
$611 Vol.
12%
15°C
$585 Vol.
35%
16°C
$2,117 Vol.
38%
17°C
$274 Vol.
11%
18°C
$108 Vol.
5%
19°C
$206 Vol.
1%
20°C
$87 Vol.
1%
21°C o más
$323 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.Persistent northeasterly flow behind a recent frontal passage continues to advect cooler maritime air into southern Ontario, with extensive stratiform cloud cover suppressing daytime insolation and limiting maximum temperatures for September 21 in Toronto. Official guidance from Environment Canada projects a high of 18 °C under a mix of sun and cloud, yet multiple GFS and ensemble runs converge on afternoon peaks of 15–16 °C amid sustained 20–25 km/h winds and near-total cloud cover. This narrow 1 °C spread between the leading market outcomes reflects modest differences in boundary-layer mixing, exact cloud optical thickness, and local lake-breeze modulation rather than larger-scale synoptic uncertainty. Traders appear to assign greater weight to the cooler model consensus than to the current official forecast, anticipating possible downward revisions in subsequent Environment Canada updates as new observational data and overnight model cycles arrive before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest 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 highest 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 abierto: Sep 19, 2026, 8:56 AM ET
Volumen
$4,671Fecha de finalización
21 sep 2026Mercado abierto
Sep 19, 2026, 8:56 AM ETFuente de resolución
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.Persistent northeasterly flow behind a recent frontal passage continues to advect cooler maritime air into southern Ontario, with extensive stratiform cloud cover suppressing daytime insolation and limiting maximum temperatures for September 21 in Toronto. Official guidance from Environment Canada projects a high of 18 °C under a mix of sun and cloud, yet multiple GFS and ensemble runs converge on afternoon peaks of 15–16 °C amid sustained 20–25 km/h winds and near-total cloud cover. This narrow 1 °C spread between the leading market outcomes reflects modest differences in boundary-layer mixing, exact cloud optical thickness, and local lake-breeze modulation rather than larger-scale synoptic uncertainty. Traders appear to assign greater weight to the cooler model consensus than to the current official forecast, anticipating possible downward revisions in subsequent Environment Canada updates as new observational data and overnight model cycles arrive before resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 21 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest 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 highest 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.
Volumen
$4,671Fecha de finalización
21 sep 2026Mercado abierto
Sep 19, 2026, 8:56 AM ETFuente de resolución
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Persistent northeasterly flow behind a recent frontal passage continues to advect cooler maritime air into southern Ontario, with extensive stratiform cloud cover suppressing daytime insolation and limiting maximum temperatures for September 21 in Toronto. Official guidance from Environment Canada projects a high of 18 °C under a mix of sun and cloud, yet multiple GFS and ensemble runs converge on afternoon peaks of 15–16 °C amid sustained 20–25 km/h winds and near-total cloud cover. This narrow 1 °C spread between the leading market outcomes reflects modest differences in boundary-layer mixing, exact cloud optical thickness, and local lake-breeze modulation rather than larger-scale synoptic uncertainty. Traders appear to assign greater weight to the cooler model consensus than to the current official forecast, anticipating possible downward revisions in subsequent Environment Canada updates as new observational data and overnight model cycles arrive before resolution.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado
Cuidado con los enlaces externos.
Cuidado con los enlaces externos.
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