Recent forecast model consensus from sources including GFS data points to a Monday high near 20°C in Toronto, driven by northwesterly winds advecting cooler, drier air behind a weekend frontal passage and building high pressure. Skies are expected to trend from clear to partly cloudy with minimal precipitation risk, limiting daytime heating compared to the 22.4°C climatological average high. Trader positioning around 19–21°C reflects this guidance, with limited model spread and no major revisions in the latest runs; a slight uptick in southerly flow or reduced cloud cover could push toward 21°C, while stronger winds would favor the lower end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Toronto on September 14?
Highest temperature in Toronto on September 14?
20°C 49%
19°C 28%
21°C 15%
22°C 5%
NEW
NEW
Sep 14, 2026
14°C or below
<1%
15°C
<1%
16°C
2%
17°C
2%
18°C
3%
19°C
28%
20°C
49%
21°C
15%
22°C
5%
23°C
2%
24°C or higher
2%
20°C 49%
19°C 28%
21°C 15%
22°C 5%
NEW
NEW
Sep 14, 2026
14°C or below
$117 Vol.
<1%
15°C
$239 Vol.
<1%
16°C
$2 Vol.
2%
17°C
$122 Vol.
2%
18°C
$455 Vol.
3%
19°C
$937 Vol.
28%
20°C
$689 Vol.
49%
21°C
$636 Vol.
15%
22°C
$464 Vol.
5%
23°C
$24 Vol.
2%
24°C or higher
$100 Vol.
2%
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 14 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.Recent forecast model consensus from sources including GFS data points to a Monday high near 20°C in Toronto, driven by northwesterly winds advecting cooler, drier air behind a weekend frontal passage and building high pressure. Skies are expected to trend from clear to partly cloudy with minimal precipitation risk, limiting daytime heating compared to the 22.4°C climatological average high. Trader positioning around 19–21°C reflects this guidance, with limited model spread and no major revisions in the latest runs; a slight uptick in southerly flow or reduced cloud cover could push toward 21°C, while stronger winds would favor the lower end.
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 14 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.
Market Opened: Sep 12, 2026, 8:56 AM ET
Volume
$3,786End Date
Sep 14, 2026Market Opened
Sep 12, 2026, 8:56 AM ETResolution Source
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 14 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.Recent forecast model consensus from sources including GFS data points to a Monday high near 20°C in Toronto, driven by northwesterly winds advecting cooler, drier air behind a weekend frontal passage and building high pressure. Skies are expected to trend from clear to partly cloudy with minimal precipitation risk, limiting daytime heating compared to the 22.4°C climatological average high. Trader positioning around 19–21°C reflects this guidance, with limited model spread and no major revisions in the latest runs; a slight uptick in southerly flow or reduced cloud cover could push toward 21°C, while stronger winds would favor the lower end.
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 14 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.
Volume
$3,786End Date
Sep 14, 2026Market Opened
Sep 12, 2026, 8:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent forecast model consensus from sources including GFS data points to a Monday high near 20°C in Toronto, driven by northwesterly winds advecting cooler, drier air behind a weekend frontal passage and building high pressure. Skies are expected to trend from clear to partly cloudy with minimal precipitation risk, limiting daytime heating compared to the 22.4°C climatological average high. Trader positioning around 19–21°C reflects this guidance, with limited model spread and no major revisions in the latest runs; a slight uptick in southerly flow or reduced cloud cover could push toward 21°C, while stronger winds would favor the lower end.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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