Official observations from Environment and Climate Change Canada at Toronto Pearson International Airport recorded a daily maximum of exactly 20 °C on May 30 under mostly sunny skies and light northeast winds. This verified reading aligns with late-May climatology, where average highs hover near 19 °C, and places the outcome at near-certainty in trader consensus. Model forecasts had converged on 19–21 °C with minimal spread, reducing downside risk from cloud cover or frontal passages. Resolution hinges strictly on the station’s official maximum; any post hoc data revision remains possible but improbable given standard quality-control protocols.
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 30?
Highest temperature in Toronto on May 30?
20°C 99.9%
13°C or below <1%
14°C <1%
15°C <1%
$123,375 Vol.
$123,375 Vol.
May 30, 2026
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C or higher
No
20°C 99.9%
13°C or below <1%
14°C <1%
15°C <1%
$123,375 Vol.
$123,375 Vol.
May 30, 2026
13°C or below
$831 Vol.
No
14°C
$1,451 Vol.
No
15°C
$1,600 Vol.
No
16°C
$3,391 Vol.
No
17°C
$6,177 Vol.
No
18°C
$59,473 Vol.
No
19°C
$16,816 Vol.
No
20°C
$10,103 Vol.
Yes
21°C
$8,225 Vol.
No
22°C
$7,584 Vol.
No
23°C or higher
$7,723 Vol.
No
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 30 May '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 observations from Environment and Climate Change Canada at Toronto Pearson International Airport recorded a daily maximum of exactly 20 °C on May 30 under mostly sunny skies and light northeast winds. This verified reading aligns with late-May climatology, where average highs hover near 19 °C, and places the outcome at near-certainty in trader consensus. Model forecasts had converged on 19–21 °C with minimal spread, reducing downside risk from cloud cover or frontal passages. Resolution hinges strictly on the station’s official maximum; any post hoc data revision remains possible but improbable given standard quality-control protocols.
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 30 May '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.
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: May 28, 2026, 12:05 AM ET
Volume
$123,375End Date
May 30, 2026Market Opened
May 28, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 30 May '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 observations from Environment and Climate Change Canada at Toronto Pearson International Airport recorded a daily maximum of exactly 20 °C on May 30 under mostly sunny skies and light northeast winds. This verified reading aligns with late-May climatology, where average highs hover near 19 °C, and places the outcome at near-certainty in trader consensus. Model forecasts had converged on 19–21 °C with minimal spread, reducing downside risk from cloud cover or frontal passages. Resolution hinges strictly on the station’s official maximum; any post hoc data revision remains possible but improbable given standard quality-control protocols.
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 30 May '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.
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
$123,375End Date
May 30, 2026Market Opened
May 28, 2026, 12:05 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Environment and Climate Change Canada at Toronto Pearson International Airport recorded a daily maximum of exactly 20 °C on May 30 under mostly sunny skies and light northeast winds. This verified reading aligns with late-May climatology, where average highs hover near 19 °C, and places the outcome at near-certainty in trader consensus. Model forecasts had converged on 19–21 °C with minimal spread, reducing downside risk from cloud cover or frontal passages. Resolution hinges strictly on the station’s official maximum; any post hoc data revision remains possible but improbable given standard quality-control protocols.
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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