Official observations from Environment Canada stations, including Toronto Pearson International Airport, recorded a minimum temperature of 17°C on September 16, 2026, aligning with real-time forecasts showing overnight lows near 16–17°C under partly cloudy conditions with light northerly winds. This value exceeds the 1991–2020 climatological average low of 13.7°C for the date and reflects the influence of a mild air mass with dew points supporting limited nocturnal cooling. Market-implied odds near 100% for 17°C represent trader consensus on verified station data. Revisions to preliminary readings or discrepancies between airport and urban microclimate stations remain the primary, albeit low-probability, factors that could alter the outcome before final certification.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Toronto on September 16?
Lowest temperature in Toronto on September 16?
17°C 100.0%
11°C or below <1%
13°C <1%
14°C <1%
$1,015 Vol.
$1,015 Vol.
Sep 16, 2026
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
100%
18°C
<1%
19°C
<1%
20°C
<1%
21°C or higher
<1%
17°C 100.0%
11°C or below <1%
13°C <1%
14°C <1%
$1,015 Vol.
$1,015 Vol.
Sep 16, 2026
11°C or below
$37 Vol.
<1%
12°C
$41 Vol.
<1%
13°C
$31 Vol.
<1%
14°C
$31 Vol.
<1%
15°C
$51 Vol.
<1%
16°C
$51 Vol.
<1%
17°C
$49 Vol.
100%
18°C
$466 Vol.
<1%
19°C
$205 Vol.
<1%
20°C
$37 Vol.
<1%
21°C or higher
$16 Vol.
<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 16 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.Official observations from Environment Canada stations, including Toronto Pearson International Airport, recorded a minimum temperature of 17°C on September 16, 2026, aligning with real-time forecasts showing overnight lows near 16–17°C under partly cloudy conditions with light northerly winds. This value exceeds the 1991–2020 climatological average low of 13.7°C for the date and reflects the influence of a mild air mass with dew points supporting limited nocturnal cooling. Market-implied odds near 100% for 17°C represent trader consensus on verified station data. Revisions to preliminary readings or discrepancies between airport and urban microclimate stations remain the primary, albeit low-probability, factors that could alter the outcome before final certification.
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 16 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.
Market Opened: Sep 14, 2026, 8:29 AM ET
Volume
$1,015End Date
Sep 16, 2026Market Opened
Sep 14, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...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 16 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.Official observations from Environment Canada stations, including Toronto Pearson International Airport, recorded a minimum temperature of 17°C on September 16, 2026, aligning with real-time forecasts showing overnight lows near 16–17°C under partly cloudy conditions with light northerly winds. This value exceeds the 1991–2020 climatological average low of 13.7°C for the date and reflects the influence of a mild air mass with dew points supporting limited nocturnal cooling. Market-implied odds near 100% for 17°C represent trader consensus on verified station data. Revisions to preliminary readings or discrepancies between airport and urban microclimate stations remain the primary, albeit low-probability, factors that could alter the outcome before final certification.
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 16 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.
Volume
$1,015End Date
Sep 16, 2026Market Opened
Sep 14, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Official observations from Environment Canada stations, including Toronto Pearson International Airport, recorded a minimum temperature of 17°C on September 16, 2026, aligning with real-time forecasts showing overnight lows near 16–17°C under partly cloudy conditions with light northerly winds. This value exceeds the 1991–2020 climatological average low of 13.7°C for the date and reflects the influence of a mild air mass with dew points supporting limited nocturnal cooling. Market-implied odds near 100% for 17°C represent trader consensus on verified station data. Revisions to preliminary readings or discrepancies between airport and urban microclimate stations remain the primary, albeit low-probability, factors that could alter the outcome before final certification.
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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