Official forecasts from Environment and Climate Change Canada and supporting numerical weather prediction models indicate Toronto’s August 22 daytime maximum near 24–25 °C under partly cloudy skies with southeast winds and a modest 30 % chance of showers. This narrow envelope, consistent with the 1991–2020 climatological average high of 25.6 °C, drives the tight market clustering around those outcomes. Subtle differences among 24 °C, 25 °C, and 26 °C hinge on afternoon convective timing, cloud-cover modulation of surface insolation, and any last-minute adjustments to boundary-layer moisture that could shift the peak by 1–2 °C. Traders are weighting the latest model runs and historical measurement uncertainty at official stations while awaiting final Environment Canada verification.
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 22?
Highest temperature in Toronto on August 22?
25°C 35%
24°C 30%
23°C 15%
26°C 13%
NEW
NEW
Aug 22, 2026
20°C or below
1%
21°C
1%
22°C
1%
23°C
15%
24°C
30%
25°C
35%
26°C
13%
27°C
5%
28°C
3%
29°C
1%
30°C or higher
<1%
25°C 35%
24°C 30%
23°C 15%
26°C 13%
NEW
NEW
Aug 22, 2026
20°C or below
$35 Vol.
1%
21°C
$0 Vol.
1%
22°C
$5 Vol.
1%
23°C
$42 Vol.
15%
24°C
$111 Vol.
30%
25°C
$65 Vol.
35%
26°C
$169 Vol.
13%
27°C
$341 Vol.
5%
28°C
$25 Vol.
3%
29°C
$28 Vol.
1%
30°C or higher
$191 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 and Climate Change Canada and supporting numerical weather prediction models indicate Toronto’s August 22 daytime maximum near 24–25 °C under partly cloudy skies with southeast winds and a modest 30 % chance of showers. This narrow envelope, consistent with the 1991–2020 climatological average high of 25.6 °C, drives the tight market clustering around those outcomes. Subtle differences among 24 °C, 25 °C, and 26 °C hinge on afternoon convective timing, cloud-cover modulation of surface insolation, and any last-minute adjustments to boundary-layer moisture that could shift the peak by 1–2 °C. Traders are weighting the latest model runs and historical measurement uncertainty at official stations while awaiting final Environment Canada verification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 20, 2026, 8:56 PM ET
Volume
$1,002End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 and Climate Change Canada and supporting numerical weather prediction models indicate Toronto’s August 22 daytime maximum near 24–25 °C under partly cloudy skies with southeast winds and a modest 30 % chance of showers. This narrow envelope, consistent with the 1991–2020 climatological average high of 25.6 °C, drives the tight market clustering around those outcomes. Subtle differences among 24 °C, 25 °C, and 26 °C hinge on afternoon convective timing, cloud-cover modulation of surface insolation, and any last-minute adjustments to boundary-layer moisture that could shift the peak by 1–2 °C. Traders are weighting the latest model runs and historical measurement uncertainty at official stations while awaiting final Environment Canada verification.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, available here: https://www.wunderground.com/history/daily/ca/mississauga/CYYZ.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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
$1,002End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Official forecasts from Environment and Climate Change Canada and supporting numerical weather prediction models indicate Toronto’s August 22 daytime maximum near 24–25 °C under partly cloudy skies with southeast winds and a modest 30 % chance of showers. This narrow envelope, consistent with the 1991–2020 climatological average high of 25.6 °C, drives the tight market clustering around those outcomes. Subtle differences among 24 °C, 25 °C, and 26 °C hinge on afternoon convective timing, cloud-cover modulation of surface insolation, and any last-minute adjustments to boundary-layer moisture that could shift the peak by 1–2 °C. Traders are weighting the latest model runs and historical measurement uncertainty at official stations while awaiting final Environment Canada verification.
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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