Recent forecasts from multiple models indicate a high temperature in Toronto on September 17 around 22–24°C, driven by a mix of sun and cloud with light northeasterly winds and a modest chance of showers that limit daytime heating. This aligns with seasonal norms near 22°C while reflecting a cooler air mass following recent variable conditions. Trader consensus on 24°C and 25°C as leading outcomes reflects model agreement on peak readings in that range, with uncertainty around exact cloud cover and any late-day clearing that could push values slightly higher or keep them near 23°C. Updated guidance from Environment Canada and similar agencies over the next 24 hours will likely refine these probabilities ahead of market resolution.
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 17?
Highest temperature in Toronto on September 17?
24°C 41%
25°C 24%
23°C 23%
22°C 8%
NEW
NEW
Sep 17, 2026
19°C or below
2%
20°C
2%
21°C
4%
22°C
8%
23°C
23%
24°C
41%
25°C
24%
26°C
7%
27°C
3%
28°C
1%
29°C or higher
<1%
24°C 41%
25°C 24%
23°C 23%
22°C 8%
NEW
NEW
Sep 17, 2026
19°C or below
$0 Vol.
2%
20°C
$10 Vol.
2%
21°C
$29 Vol.
4%
22°C
$209 Vol.
8%
23°C
$42 Vol.
23%
24°C
$461 Vol.
41%
25°C
$149 Vol.
24%
26°C
$10 Vol.
7%
27°C
$131 Vol.
3%
28°C
$178 Vol.
1%
29°C or higher
$158 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 17 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 forecasts from multiple models indicate a high temperature in Toronto on September 17 around 22–24°C, driven by a mix of sun and cloud with light northeasterly winds and a modest chance of showers that limit daytime heating. This aligns with seasonal norms near 22°C while reflecting a cooler air mass following recent variable conditions. Trader consensus on 24°C and 25°C as leading outcomes reflects model agreement on peak readings in that range, with uncertainty around exact cloud cover and any late-day clearing that could push values slightly higher or keep them near 23°C. Updated guidance from Environment Canada and similar agencies over the next 24 hours will likely refine these probabilities ahead of market 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 17 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 15, 2026, 8:56 AM ET
Volume
$1,377End Date
Sep 17, 2026Market Opened
Sep 15, 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 17 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 forecasts from multiple models indicate a high temperature in Toronto on September 17 around 22–24°C, driven by a mix of sun and cloud with light northeasterly winds and a modest chance of showers that limit daytime heating. This aligns with seasonal norms near 22°C while reflecting a cooler air mass following recent variable conditions. Trader consensus on 24°C and 25°C as leading outcomes reflects model agreement on peak readings in that range, with uncertainty around exact cloud cover and any late-day clearing that could push values slightly higher or keep them near 23°C. Updated guidance from Environment Canada and similar agencies over the next 24 hours will likely refine these probabilities ahead of market 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 17 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
$1,377End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 8:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent forecasts from multiple models indicate a high temperature in Toronto on September 17 around 22–24°C, driven by a mix of sun and cloud with light northeasterly winds and a modest chance of showers that limit daytime heating. This aligns with seasonal norms near 22°C while reflecting a cooler air mass following recent variable conditions. Trader consensus on 24°C and 25°C as leading outcomes reflects model agreement on peak readings in that range, with uncertainty around exact cloud cover and any late-day clearing that could push values slightly higher or keep them near 23°C. Updated guidance from Environment Canada and similar agencies over the next 24 hours will likely refine these probabilities ahead of market resolution.
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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