Environment Canada's latest forecast for Toronto Pearson International Airport, the market's resolution station, projects a high of 7°C on April 5 under cloudy skies with a 30% chance of showers, continuing the cool, misty pattern observed over the past two days with daytime highs near 3°C. This aligns with broader Ontario spring outlooks for below-normal temperatures averaging 5°C monthly, driven by persistent upper-level troughs fostering cloud cover and light precipitation that suppress solar heating. Yet trader sentiment favors warmer outcomes—12°C or higher at 32.5% implied probability, 11°C at 19.5%—reflecting spring forecast uncertainty, where models like GFS and GEM ensembles often diverge 2-3 days out, historical early-April highs averaging 9-11°C, and potential for clearer skies or weak warm advection to boost peaks. Watch for April 3 forecast updates and evening model runs.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on April 5?
Highest temperature in Toronto on April 5?
12°C or higher 31%
11°C 20%
9°C 18%
10°C 15%
$10,307 Vol.
$10,307 Vol.
2°C or below
<1%
3°C
<1%
4°C
1%
5°C
1%
6°C
4%
7°C
10%
8°C
13%
9°C
18%
10°C
15%
11°C
20%
12°C or higher
31%
12°C or higher 31%
11°C 20%
9°C 18%
10°C 15%
$10,307 Vol.
$10,307 Vol.
2°C or below
<1%
3°C
<1%
4°C
1%
5°C
1%
6°C
4%
7°C
10%
8°C
13%
9°C
18%
10°C
15%
11°C
20%
12°C or higher
31%
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: Apr 1, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Environment Canada's latest forecast for Toronto Pearson International Airport, the market's resolution station, projects a high of 7°C on April 5 under cloudy skies with a 30% chance of showers, continuing the cool, misty pattern observed over the past two days with daytime highs near 3°C. This aligns with broader Ontario spring outlooks for below-normal temperatures averaging 5°C monthly, driven by persistent upper-level troughs fostering cloud cover and light precipitation that suppress solar heating. Yet trader sentiment favors warmer outcomes—12°C or higher at 32.5% implied probability, 11°C at 19.5%—reflecting spring forecast uncertainty, where models like GFS and GEM ensembles often diverge 2-3 days out, historical early-April highs averaging 9-11°C, and potential for clearer skies or weak warm advection to boost peaks. Watch for April 3 forecast updates and evening model runs.
Experimental AI-generated summary referencing Polymarket data · Updated
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