Official meteorological observations from Environment Canada and Toronto-area stations recorded a daily maximum of 26°C on August 29, 2026, driving the market's 100% consensus on that outcome. This reflects verified surface air temperature measurements under prevailing southwesterly flow and moderate humidity, consistent with pre-event model guidance showing a high near 25–27°C amid increasing cloud cover and light precipitation that limited further warming. Historical late-August averages hover around 24–25°C, providing context for the modest anomaly. While 100% odds indicate strong agreement on the final data, rare post-event revisions from station calibration checks or discrepancies between official sites could theoretically alter resolution, though such adjustments are uncommon once preliminary reports are confirmed.
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 August 29?
Highest temperature in Toronto on August 29?
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$40,274 Vol.
$40,274 Vol.
Aug 29, 2026
22°C or below
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C or higher
No
26°C 100.0%
22°C or below <1%
23°C <1%
24°C <1%
$40,274 Vol.
$40,274 Vol.
Aug 29, 2026
22°C or below
$2,009 Vol.
No
23°C
$1,210 Vol.
No
24°C
$3,085 Vol.
No
25°C
$5,807 Vol.
No
26°C
$11,591 Vol.
Yes
27°C
$7,893 Vol.
No
28°C
$6,227 Vol.
No
29°C
$1,470 Vol.
No
30°C
$264 Vol.
No
31°C
$328 Vol.
No
32°C or higher
$390 Vol.
No
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 29 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 meteorological observations from Environment Canada and Toronto-area stations recorded a daily maximum of 26°C on August 29, 2026, driving the market's 100% consensus on that outcome. This reflects verified surface air temperature measurements under prevailing southwesterly flow and moderate humidity, consistent with pre-event model guidance showing a high near 25–27°C amid increasing cloud cover and light precipitation that limited further warming. Historical late-August averages hover around 24–25°C, providing context for the modest anomaly. While 100% odds indicate strong agreement on the final data, rare post-event revisions from station calibration checks or discrepancies between official sites could theoretically alter resolution, though such adjustments are uncommon once preliminary reports are confirmed.
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 29 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 27, 2026, 8:55 PM ET
Volume
$40,274End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 8:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 29 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 meteorological observations from Environment Canada and Toronto-area stations recorded a daily maximum of 26°C on August 29, 2026, driving the market's 100% consensus on that outcome. This reflects verified surface air temperature measurements under prevailing southwesterly flow and moderate humidity, consistent with pre-event model guidance showing a high near 25–27°C amid increasing cloud cover and light precipitation that limited further warming. Historical late-August averages hover around 24–25°C, providing context for the modest anomaly. While 100% odds indicate strong agreement on the final data, rare post-event revisions from station calibration checks or discrepancies between official sites could theoretically alter resolution, though such adjustments are uncommon once preliminary reports are confirmed.
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 29 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$40,274End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 8:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official meteorological observations from Environment Canada and Toronto-area stations recorded a daily maximum of 26°C on August 29, 2026, driving the market's 100% consensus on that outcome. This reflects verified surface air temperature measurements under prevailing southwesterly flow and moderate humidity, consistent with pre-event model guidance showing a high near 25–27°C amid increasing cloud cover and light precipitation that limited further warming. Historical late-August averages hover around 24–25°C, providing context for the modest anomaly. While 100% odds indicate strong agreement on the final data, rare post-event revisions from station calibration checks or discrepancies between official sites could theoretically alter resolution, though such adjustments are uncommon once preliminary reports are confirmed.
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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