**Official forecasts from Environment Canada and supporting models position a high near 23–24°C as the most likely outcome for Toronto on September 8, aligning with the market's heaviest weighting on those values.** Persistent cloud cover is expected to limit daytime heating under southeasterly flow, keeping temperatures close to the long-term average high of 23.5°C for the date. Recent model runs show stable guidance with minimal day-to-day shifts since early September, and no strong warm advection or clear-sky conditions that would push readings toward 26°C or higher. A 30% chance of showers overnight adds minor uncertainty around the precise maximum, but overall consensus supports modest late-summer conditions rather than extremes. Traders appear to be pricing in this forecast consensus backed by official agency data.
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 8?
Highest temperature in Toronto on September 8?
24°C 42%
23°C 37%
25°C 32%
26°C 20%
NEW
NEW
Sep 8, 2026
19°C or below
10%
20°C
10%
21°C
14%
22°C
19%
23°C
37%
24°C
42%
25°C
32%
26°C
20%
27°C
16%
28°C
14%
29°C or higher
11%
24°C 42%
23°C 37%
25°C 32%
26°C 20%
NEW
NEW
Sep 8, 2026
19°C or below
$0 Vol.
10%
20°C
$0 Vol.
10%
21°C
$0 Vol.
14%
22°C
$0 Vol.
19%
23°C
$0 Vol.
37%
24°C
$54 Vol.
42%
25°C
$0 Vol.
32%
26°C
$0 Vol.
20%
27°C
$0 Vol.
16%
28°C
$0 Vol.
14%
29°C or higher
$0 Vol.
11%
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 8 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 and supporting models position a high near 23–24°C as the most likely outcome for Toronto on September 8, aligning with the market's heaviest weighting on those values.**
Persistent cloud cover is expected to limit daytime heating under southeasterly flow, keeping temperatures close to the long-term average high of 23.5°C for the date. Recent model runs show stable guidance with minimal day-to-day shifts since early September, and no strong warm advection or clear-sky conditions that would push readings toward 26°C or higher. A 30% chance of showers overnight adds minor uncertainty around the precise maximum, but overall consensus supports modest late-summer conditions rather than extremes. Traders appear to be pricing in this forecast consensus backed by official agency data.
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 8 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 6, 2026, 8:55 AM ET
Volume
$5End Date
Sep 8, 2026Market Opened
Sep 6, 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 8 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 and supporting models position a high near 23–24°C as the most likely outcome for Toronto on September 8, aligning with the market's heaviest weighting on those values.**
Persistent cloud cover is expected to limit daytime heating under southeasterly flow, keeping temperatures close to the long-term average high of 23.5°C for the date. Recent model runs show stable guidance with minimal day-to-day shifts since early September, and no strong warm advection or clear-sky conditions that would push readings toward 26°C or higher. A 30% chance of showers overnight adds minor uncertainty around the precise maximum, but overall consensus supports modest late-summer conditions rather than extremes. Traders appear to be pricing in this forecast consensus backed by official agency data.
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 8 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
$5End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 8:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...**Official forecasts from Environment Canada and supporting models position a high near 23–24°C as the most likely outcome for Toronto on September 8, aligning with the market's heaviest weighting on those values.** Persistent cloud cover is expected to limit daytime heating under southeasterly flow, keeping temperatures close to the long-term average high of 23.5°C for the date. Recent model runs show stable guidance with minimal day-to-day shifts since early September, and no strong warm advection or clear-sky conditions that would push readings toward 26°C or higher. A 30% chance of showers overnight adds minor uncertainty around the precise maximum, but overall consensus supports modest late-summer conditions rather than extremes. Traders appear to be pricing in this forecast consensus backed by official agency data.
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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