Recent forecasts from Environment Canada and other models indicate a high around 21–22 °C for Toronto on August 23 under widespread showers and westerly winds, well below the 25.5 °C climatological average. Persistent cloud cover and evaporative cooling from rainfall are suppressing daytime warming, while cooler maritime air advection limits peak readings. Traders appear to weigh the timing and intensity of showers—stronger or earlier precipitation favors the 20–21 °C outcomes—against the possibility of partial clearing that could nudge readings toward 22 °C. Model consensus currently supports these cooler scenarios, though small shifts in storm track or timing could alter the exact maximum before 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 23?
Highest temperature in Toronto on August 23?
21°C 35%
20°C 27%
22°C 24%
19°C 7%
NEW
NEW
Aug 23, 2026
15°C or below
<1%
16°C
<1%
17°C
1%
18°C
2%
19°C
7%
20°C
27%
21°C
35%
22°C
24%
23°C
6%
24°C
3%
25°C or higher
1%
21°C 35%
20°C 27%
22°C 24%
19°C 7%
NEW
NEW
Aug 23, 2026
15°C or below
$111 Vol.
<1%
16°C
$125 Vol.
<1%
17°C
$53 Vol.
1%
18°C
$95 Vol.
2%
19°C
$316 Vol.
7%
20°C
$1,147 Vol.
27%
21°C
$266 Vol.
35%
22°C
$902 Vol.
24%
23°C
$343 Vol.
6%
24°C
$101 Vol.
3%
25°C or higher
$90 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 23 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
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.Recent forecasts from Environment Canada and other models indicate a high around 21–22 °C for Toronto on August 23 under widespread showers and westerly winds, well below the 25.5 °C climatological average. Persistent cloud cover and evaporative cooling from rainfall are suppressing daytime warming, while cooler maritime air advection limits peak readings. Traders appear to weigh the timing and intensity of showers—stronger or earlier precipitation favors the 20–21 °C outcomes—against the possibility of partial clearing that could nudge readings toward 22 °C. Model consensus currently supports these cooler scenarios, though small shifts in storm track or timing could alter the exact maximum before 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 23 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
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
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 21, 2026, 11:56 PM ET
Volume
$3,550End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 11:56 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 23 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
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.Recent forecasts from Environment Canada and other models indicate a high around 21–22 °C for Toronto on August 23 under widespread showers and westerly winds, well below the 25.5 °C climatological average. Persistent cloud cover and evaporative cooling from rainfall are suppressing daytime warming, while cooler maritime air advection limits peak readings. Traders appear to weigh the timing and intensity of showers—stronger or earlier precipitation favors the 20–21 °C outcomes—against the possibility of partial clearing that could nudge readings toward 22 °C. Model consensus currently supports these cooler scenarios, though small shifts in storm track or timing could alter the exact maximum before 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 23 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
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
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
$3,550End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 11:56 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent forecasts from Environment Canada and other models indicate a high around 21–22 °C for Toronto on August 23 under widespread showers and westerly winds, well below the 25.5 °C climatological average. Persistent cloud cover and evaporative cooling from rainfall are suppressing daytime warming, while cooler maritime air advection limits peak readings. Traders appear to weigh the timing and intensity of showers—stronger or earlier precipitation favors the 20–21 °C outcomes—against the possibility of partial clearing that could nudge readings toward 22 °C. Model consensus currently supports these cooler scenarios, though small shifts in storm track or timing could alter the exact maximum before 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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