Environment Canada's latest hourly forecast for Toronto Pearson International Airport shows temperatures peaking at 17°C around 4-5 PM EDT on May 9, 2026, after early morning lows near 5°C and current readings already hitting 16°C by early afternoon, positioning 16°C (59.5% market-implied probability) slightly ahead of 17°C or higher (46%) in trader consensus. Southwest winds at 20-30 km/h support modest warming under mixed sun and clouds, but a 40-60% chance of afternoon showers and thunderstorms introduces uncertainty, potentially capping the high at 16°C via convective cooling. This follows a cooldown from May 5's 17°C high to 12°C on May 7-8, aligning with climatological early-May averages of 16-17°C at the station; watch afternoon radar updates for shifts ahead of evening 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 May 9?
Highest temperature in Toronto on May 9?
16°C 75%
17°C or higher 26%
12°C <1%
13°C <1%
$66,431 Vol.
$66,431 Vol.
May 9, 2026
12°C
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
75%
17°C or higher
26%
16°C 75%
17°C or higher 26%
12°C <1%
13°C <1%
$66,431 Vol.
$66,431 Vol.
May 9, 2026
12°C
$6,056 Vol.
<1%
13°C
$7,967 Vol.
<1%
14°C
$7,707 Vol.
<1%
15°C
$7,981 Vol.
<1%
16°C
$9,701 Vol.
75%
17°C or higher
$8,559 Vol.
26%
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 9 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Environment Canada's latest hourly forecast for Toronto Pearson International Airport shows temperatures peaking at 17°C around 4-5 PM EDT on May 9, 2026, after early morning lows near 5°C and current readings already hitting 16°C by early afternoon, positioning 16°C (59.5% market-implied probability) slightly ahead of 17°C or higher (46%) in trader consensus. Southwest winds at 20-30 km/h support modest warming under mixed sun and clouds, but a 40-60% chance of afternoon showers and thunderstorms introduces uncertainty, potentially capping the high at 16°C via convective cooling. This follows a cooldown from May 5's 17°C high to 12°C on May 7-8, aligning with climatological early-May averages of 16-17°C at the station; watch afternoon radar updates for shifts ahead of evening resolution.
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 9 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 7, 2026, 12:12 AM ET
Volume
$66,431End Date
May 9, 2026Market Opened
May 7, 2026, 12:12 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
Dispute window
Final
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 9 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Environment Canada's latest hourly forecast for Toronto Pearson International Airport shows temperatures peaking at 17°C around 4-5 PM EDT on May 9, 2026, after early morning lows near 5°C and current readings already hitting 16°C by early afternoon, positioning 16°C (59.5% market-implied probability) slightly ahead of 17°C or higher (46%) in trader consensus. Southwest winds at 20-30 km/h support modest warming under mixed sun and clouds, but a 40-60% chance of afternoon showers and thunderstorms introduces uncertainty, potentially capping the high at 16°C via convective cooling. This follows a cooldown from May 5's 17°C high to 12°C on May 7-8, aligning with climatological early-May averages of 16-17°C at the station; watch afternoon radar updates for shifts ahead of evening resolution.
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 9 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Toronto Pearson Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$66,431End Date
May 9, 2026Market Opened
May 7, 2026, 12:12 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
Dispute window
Final
Environment Canada's latest hourly forecast for Toronto Pearson International Airport shows temperatures peaking at 17°C around 4-5 PM EDT on May 9, 2026, after early morning lows near 5°C and current readings already hitting 16°C by early afternoon, positioning 16°C (59.5% market-implied probability) slightly ahead of 17°C or higher (46%) in trader consensus. Southwest winds at 20-30 km/h support modest warming under mixed sun and clouds, but a 40-60% chance of afternoon showers and thunderstorms introduces uncertainty, potentially capping the high at 16°C via convective cooling. This follows a cooldown from May 5's 17°C high to 12°C on May 7-8, aligning with climatological early-May averages of 16-17°C at the station; watch afternoon radar updates for shifts ahead of evening 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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