Environment Canada's forecast issued May 4 projects Toronto's highest temperature on May 7 at 12°C under sunny skies, driving trader consensus with market-implied odds tightly clustered around 11–13°C at 21–22.5%. This reflects a cooling trend from current 19°C readings, as showers on May 5–6 usher in a cooler post-frontal air mass with northerly flow, moderated further by Lake Ontario's lake breeze effect that often caps urban highs. Differentiating factors include potential for fuller insolation pushing 13°C if winds remain light, versus enhanced onshore flow or lingering clouds dropping to 11°C; global models like GFS and GEM show 1–2°C ensemble spread. Watch for this afternoon's updated Environment Canada guidance and new model runs resolving these uncertainties ahead of Thursday's peak heating window.
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 7?
Highest temperature in Toronto on May 7?
11°C 34%
12°C 32%
13°C 16%
10°C 12%
NEW
NEW
May 7, 2026
6°C or below
<1%
7°C
1%
8°C
1%
9°C
4%
10°C
12%
11°C
34%
12°C
32%
13°C
16%
14°C
4%
15°C
2%
16°C or higher
1%
11°C 34%
12°C 32%
13°C 16%
10°C 12%
NEW
NEW
May 7, 2026
6°C or below
$739 Vol.
<1%
7°C
$1,558 Vol.
1%
8°C
$1,227 Vol.
1%
9°C
$1,049 Vol.
4%
10°C
$751 Vol.
12%
11°C
$201 Vol.
34%
12°C
$492 Vol.
32%
13°C
$434 Vol.
16%
14°C
$557 Vol.
4%
15°C
$411 Vol.
2%
16°C or higher
$1,059 Vol.
1%
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 7 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 forecast issued May 4 projects Toronto's highest temperature on May 7 at 12°C under sunny skies, driving trader consensus with market-implied odds tightly clustered around 11–13°C at 21–22.5%. This reflects a cooling trend from current 19°C readings, as showers on May 5–6 usher in a cooler post-frontal air mass with northerly flow, moderated further by Lake Ontario's lake breeze effect that often caps urban highs. Differentiating factors include potential for fuller insolation pushing 13°C if winds remain light, versus enhanced onshore flow or lingering clouds dropping to 11°C; global models like GFS and GEM show 1–2°C ensemble spread. Watch for this afternoon's updated Environment Canada guidance and new model runs resolving these uncertainties ahead of Thursday's peak heating window.
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 7 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 5, 2026, 12:35 AM ET
Volume
$8,448End Date
May 7, 2026Market Opened
May 5, 2026, 12:35 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...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 7 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 forecast issued May 4 projects Toronto's highest temperature on May 7 at 12°C under sunny skies, driving trader consensus with market-implied odds tightly clustered around 11–13°C at 21–22.5%. This reflects a cooling trend from current 19°C readings, as showers on May 5–6 usher in a cooler post-frontal air mass with northerly flow, moderated further by Lake Ontario's lake breeze effect that often caps urban highs. Differentiating factors include potential for fuller insolation pushing 13°C if winds remain light, versus enhanced onshore flow or lingering clouds dropping to 11°C; global models like GFS and GEM show 1–2°C ensemble spread. Watch for this afternoon's updated Environment Canada guidance and new model runs resolving these uncertainties ahead of Thursday's peak heating window.
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 7 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
$8,448End Date
May 7, 2026Market Opened
May 5, 2026, 12:35 AM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Environment Canada's forecast issued May 4 projects Toronto's highest temperature on May 7 at 12°C under sunny skies, driving trader consensus with market-implied odds tightly clustered around 11–13°C at 21–22.5%. This reflects a cooling trend from current 19°C readings, as showers on May 5–6 usher in a cooler post-frontal air mass with northerly flow, moderated further by Lake Ontario's lake breeze effect that often caps urban highs. Differentiating factors include potential for fuller insolation pushing 13°C if winds remain light, versus enhanced onshore flow or lingering clouds dropping to 11°C; global models like GFS and GEM show 1–2°C ensemble spread. Watch for this afternoon's updated Environment Canada guidance and new model runs resolving these uncertainties ahead of Thursday's peak heating window.
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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