Recent official forecasts and real-time observations from Environment Canada show Toronto reaching a daytime high of 24–25°C on September 7 under mainly sunny to mostly cloudy skies, with current readings at Pearson Airport hitting 25°C by mid-afternoon. This aligns with climatological averages near 23.7°C and supports the market's strong 95.5% implied probability on 25°C. Model consensus from multiple sources indicates limited potential for significant deviation, as light southerly winds and stable high pressure limit both rapid warming and cooling. A sudden increase in cloud cover or unexpected wind shift could cap the high below 25°C, while clearer skies or delayed cooling might push readings marginally higher, though current data make those outcomes unlikely before 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 7?
Highest temperature in Toronto on September 7?
25°C 99%
26°C 2%
27°C <1%
28°C <1%
$33,672 Vol.
$33,672 Vol.
Sep 7, 2026
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
99%
26°C
2%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
25°C 99%
26°C 2%
27°C <1%
28°C <1%
$33,672 Vol.
$33,672 Vol.
Sep 7, 2026
20°C or below
$90 Vol.
<1%
21°C
$865 Vol.
<1%
22°C
$2,861 Vol.
<1%
23°C
$4,096 Vol.
<1%
24°C
$8,313 Vol.
<1%
25°C
$8,605 Vol.
99%
26°C
$4,450 Vol.
2%
27°C
$2,933 Vol.
<1%
28°C
$1,208 Vol.
<1%
29°C
$125 Vol.
<1%
30°C or higher
$125 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 7 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 official forecasts and real-time observations from Environment Canada show Toronto reaching a daytime high of 24–25°C on September 7 under mainly sunny to mostly cloudy skies, with current readings at Pearson Airport hitting 25°C by mid-afternoon. This aligns with climatological averages near 23.7°C and supports the market's strong 95.5% implied probability on 25°C. Model consensus from multiple sources indicates limited potential for significant deviation, as light southerly winds and stable high pressure limit both rapid warming and cooling. A sudden increase in cloud cover or unexpected wind shift could cap the high below 25°C, while clearer skies or delayed cooling might push readings marginally higher, though current data make those outcomes unlikely 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 7 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 5, 2026, 8:55 AM ET
Volume
$33,672End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 8:55 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 7 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 official forecasts and real-time observations from Environment Canada show Toronto reaching a daytime high of 24–25°C on September 7 under mainly sunny to mostly cloudy skies, with current readings at Pearson Airport hitting 25°C by mid-afternoon. This aligns with climatological averages near 23.7°C and supports the market's strong 95.5% implied probability on 25°C. Model consensus from multiple sources indicates limited potential for significant deviation, as light southerly winds and stable high pressure limit both rapid warming and cooling. A sudden increase in cloud cover or unexpected wind shift could cap the high below 25°C, while clearer skies or delayed cooling might push readings marginally higher, though current data make those outcomes unlikely 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 7 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
$33,672End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent official forecasts and real-time observations from Environment Canada show Toronto reaching a daytime high of 24–25°C on September 7 under mainly sunny to mostly cloudy skies, with current readings at Pearson Airport hitting 25°C by mid-afternoon. This aligns with climatological averages near 23.7°C and supports the market's strong 95.5% implied probability on 25°C. Model consensus from multiple sources indicates limited potential for significant deviation, as light southerly winds and stable high pressure limit both rapid warming and cooling. A sudden increase in cloud cover or unexpected wind shift could cap the high below 25°C, while clearer skies or delayed cooling might push readings marginally higher, though current data make those outcomes unlikely before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions