**Forecast models and official guidance from Environment Canada indicate a high near 26°C for Toronto on August 30 under southwesterly flow bringing warmer, more humid air.** A mix of sun and cloud with only a 30% chance of showers supports this peak, above the late-August normal of 24°C. Trader emphasis on 23–24°C likely reflects uncertainty around cloud timing and any showers moderating insolation, as even modest increases in coverage or earlier precipitation can limit the maximum by 1–2°C through reduced surface heating. Stronger mixing or delayed cloud build-up would favor the higher end near 25–26°C. With resolution just hours away, updated model runs and observed trends in dew points and wind will drive the final outcome.
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 30?
Highest temperature in Toronto on August 30?
24°C 30%
23°C 26%
22°C 16%
25°C 15%
NEW
NEW
Aug 30, 2026
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
2%
21°C
6%
22°C
16%
23°C
26%
24°C
30%
25°C
15%
26°C
5%
27°C or higher
4%
24°C 30%
23°C 26%
22°C 16%
25°C 15%
NEW
NEW
Aug 30, 2026
17°C or below
$5 Vol.
<1%
18°C
$5 Vol.
<1%
19°C
$15 Vol.
<1%
20°C
$300 Vol.
2%
21°C
$320 Vol.
6%
22°C
$246 Vol.
16%
23°C
$512 Vol.
26%
24°C
$201 Vol.
30%
25°C
$145 Vol.
15%
26°C
$134 Vol.
5%
27°C or higher
$101 Vol.
4%
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 30 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.**Forecast models and official guidance from Environment Canada indicate a high near 26°C for Toronto on August 30 under southwesterly flow bringing warmer, more humid air.** A mix of sun and cloud with only a 30% chance of showers supports this peak, above the late-August normal of 24°C. Trader emphasis on 23–24°C likely reflects uncertainty around cloud timing and any showers moderating insolation, as even modest increases in coverage or earlier precipitation can limit the maximum by 1–2°C through reduced surface heating. Stronger mixing or delayed cloud build-up would favor the higher end near 25–26°C. With resolution just hours away, updated model runs and observed trends in dew points and wind will drive the final outcome.
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 30 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 28, 2026, 2:55 PM ET
Volume
$1,984End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 2:55 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 30 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.**Forecast models and official guidance from Environment Canada indicate a high near 26°C for Toronto on August 30 under southwesterly flow bringing warmer, more humid air.** A mix of sun and cloud with only a 30% chance of showers supports this peak, above the late-August normal of 24°C. Trader emphasis on 23–24°C likely reflects uncertainty around cloud timing and any showers moderating insolation, as even modest increases in coverage or earlier precipitation can limit the maximum by 1–2°C through reduced surface heating. Stronger mixing or delayed cloud build-up would favor the higher end near 25–26°C. With resolution just hours away, updated model runs and observed trends in dew points and wind will drive the final outcome.
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 30 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
$1,984End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 2:55 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...**Forecast models and official guidance from Environment Canada indicate a high near 26°C for Toronto on August 30 under southwesterly flow bringing warmer, more humid air.** A mix of sun and cloud with only a 30% chance of showers supports this peak, above the late-August normal of 24°C. Trader emphasis on 23–24°C likely reflects uncertainty around cloud timing and any showers moderating insolation, as even modest increases in coverage or earlier precipitation can limit the maximum by 1–2°C through reduced surface heating. Stronger mixing or delayed cloud build-up would favor the higher end near 25–26°C. With resolution just hours away, updated model runs and observed trends in dew points and wind will drive the final outcome.
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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