Official forecasts from Environment Canada project a high of 25°C for Toronto on September 5, with a mix of sun and cloud and only a 30% chance of afternoon showers under light northeasterly winds. Multiple numerical weather models align closely on this range, reflecting stable high-pressure influence and typical early-September climatology where the historical average high sits near 23.9°C. Trader consensus, reflected in the 48% implied probability for 24°C and 28.5% for 25°C, tracks these guidance products without indications of rapid warming or cooling from passing fronts. Final resolution will hinge on the official maximum recorded at Pearson International Airport, with minimal uncertainty expected given the calm synoptic pattern.
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 5?
Highest temperature in Toronto on September 5?
24°C 49%
25°C 29%
23°C 14%
26°C 6%
NEW
NEW
Sep 5, 2026
19°C or below
<1%
20°C
2%
21°C
2%
22°C
3%
23°C
14%
24°C
49%
25°C
29%
26°C
6%
27°C
4%
28°C
2%
29°C or higher
<1%
24°C 49%
25°C 29%
23°C 14%
26°C 6%
NEW
NEW
Sep 5, 2026
19°C or below
$99 Vol.
<1%
20°C
$0 Vol.
2%
21°C
$181 Vol.
2%
22°C
$430 Vol.
3%
23°C
$844 Vol.
14%
24°C
$350 Vol.
49%
25°C
$782 Vol.
29%
26°C
$331 Vol.
6%
27°C
$165 Vol.
4%
28°C
$224 Vol.
2%
29°C or higher
$183 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 5 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.Official forecasts from Environment Canada project a high of 25°C for Toronto on September 5, with a mix of sun and cloud and only a 30% chance of afternoon showers under light northeasterly winds. Multiple numerical weather models align closely on this range, reflecting stable high-pressure influence and typical early-September climatology where the historical average high sits near 23.9°C. Trader consensus, reflected in the 48% implied probability for 24°C and 28.5% for 25°C, tracks these guidance products without indications of rapid warming or cooling from passing fronts. Final resolution will hinge on the official maximum recorded at Pearson International Airport, with minimal uncertainty expected given the calm synoptic pattern.
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 5 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 3, 2026, 8:55 AM ET
Volume
$3,588End Date
Sep 5, 2026Market Opened
Sep 3, 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 5 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.Official forecasts from Environment Canada project a high of 25°C for Toronto on September 5, with a mix of sun and cloud and only a 30% chance of afternoon showers under light northeasterly winds. Multiple numerical weather models align closely on this range, reflecting stable high-pressure influence and typical early-September climatology where the historical average high sits near 23.9°C. Trader consensus, reflected in the 48% implied probability for 24°C and 28.5% for 25°C, tracks these guidance products without indications of rapid warming or cooling from passing fronts. Final resolution will hinge on the official maximum recorded at Pearson International Airport, with minimal uncertainty expected given the calm synoptic pattern.
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 5 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
$3,588End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Official forecasts from Environment Canada project a high of 25°C for Toronto on September 5, with a mix of sun and cloud and only a 30% chance of afternoon showers under light northeasterly winds. Multiple numerical weather models align closely on this range, reflecting stable high-pressure influence and typical early-September climatology where the historical average high sits near 23.9°C. Trader consensus, reflected in the 48% implied probability for 24°C and 28.5% for 25°C, tracks these guidance products without indications of rapid warming or cooling from passing fronts. Final resolution will hinge on the official maximum recorded at Pearson International Airport, with minimal uncertainty expected given the calm synoptic pattern.
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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