**Official forecasts from Environment Canada project a sunny high of 26°C for Toronto on August 29 under a stable high-pressure ridge with southerly flow, while other models range 24–26°C amid partly to mostly cloudy conditions and light winds.** This aligns closely with the late-August climatological average high of ~24.9°C. Trader consensus, however, assigns the highest implied probability (43.5%) to 27°C, with 26°C at 24% and 28°C at 21%, suggesting recent ensemble guidance or diurnal heating expectations may support a modest upward bias relative to the deterministic forecast. Low precipitation chances and clear-to-partly-cloudy skies overnight into the day favor efficient daytime warming without significant moisture or cloud suppression. Key upcoming data include updated NWP runs and morning observations that could refine the maximum before 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 August 29?
Highest temperature in Toronto on August 29?
27°C 44%
26°C 24%
28°C 23%
25°C 7%
NEW
NEW
Aug 29, 2026
22°C or below
<1%
23°C
1%
24°C
3%
25°C
7%
26°C
24%
27°C
44%
28°C
23%
29°C
4%
30°C
3%
31°C
1%
32°C or higher
<1%
27°C 44%
26°C 24%
28°C 23%
25°C 7%
NEW
NEW
Aug 29, 2026
22°C or below
$159 Vol.
<1%
23°C
$67 Vol.
1%
24°C
$49 Vol.
3%
25°C
$257 Vol.
7%
26°C
$356 Vol.
24%
27°C
$417 Vol.
44%
28°C
$294 Vol.
23%
29°C
$32 Vol.
4%
30°C
$48 Vol.
3%
31°C
$218 Vol.
1%
32°C or higher
$390 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 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 forecasts from Environment Canada project a sunny high of 26°C for Toronto on August 29 under a stable high-pressure ridge with southerly flow, while other models range 24–26°C amid partly to mostly cloudy conditions and light winds.** This aligns closely with the late-August climatological average high of ~24.9°C. Trader consensus, however, assigns the highest implied probability (43.5%) to 27°C, with 26°C at 24% and 28°C at 21%, suggesting recent ensemble guidance or diurnal heating expectations may support a modest upward bias relative to the deterministic forecast. Low precipitation chances and clear-to-partly-cloudy skies overnight into the day favor efficient daytime warming without significant moisture or cloud suppression. Key upcoming data include updated NWP runs and morning observations that could refine the maximum before 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 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
$2,269End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 8:55 PM 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 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 forecasts from Environment Canada project a sunny high of 26°C for Toronto on August 29 under a stable high-pressure ridge with southerly flow, while other models range 24–26°C amid partly to mostly cloudy conditions and light winds.** This aligns closely with the late-August climatological average high of ~24.9°C. Trader consensus, however, assigns the highest implied probability (43.5%) to 27°C, with 26°C at 24% and 28°C at 21%, suggesting recent ensemble guidance or diurnal heating expectations may support a modest upward bias relative to the deterministic forecast. Low precipitation chances and clear-to-partly-cloudy skies overnight into the day favor efficient daytime warming without significant moisture or cloud suppression. Key upcoming data include updated NWP runs and morning observations that could refine the maximum before 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 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
$2,269End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 8:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...**Official forecasts from Environment Canada project a sunny high of 26°C for Toronto on August 29 under a stable high-pressure ridge with southerly flow, while other models range 24–26°C amid partly to mostly cloudy conditions and light winds.** This aligns closely with the late-August climatological average high of ~24.9°C. Trader consensus, however, assigns the highest implied probability (43.5%) to 27°C, with 26°C at 24% and 28°C at 21%, suggesting recent ensemble guidance or diurnal heating expectations may support a modest upward bias relative to the deterministic forecast. Low precipitation chances and clear-to-partly-cloudy skies overnight into the day favor efficient daytime warming without significant moisture or cloud suppression. Key upcoming data include updated NWP runs and morning observations that could refine the maximum before 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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