Environment Canada's forecast update issued early April 2 projects a high of 6°C at Toronto Pearson International Airport on April 5 amid persistent cloud cover and a 30% chance of showers from an approaching low-pressure trough, yet trader sentiment clusters tightly around 8–9°C (topping at 22% and 17.5%) reflecting uncertainty in global model ensembles like GFS and ECMWF, where some members forecast partial clearing or delayed cooling for highs up to 12°C. Differentiating factors include low-level moisture persistence, frontal timing, and wind speeds influencing diurnal heating against early April climatological norms near 10°C. New model runs and afternoon guidance updates will likely sharpen resolution criteria before the event.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on April 5?
Highest temperature in Toronto on April 5?
9°C 22%
8°C 18%
10°C 14%
12°C or higher 14%
2°C or below
<1%
3°C
1%
4°C
1%
5°C
2%
6°C
6%
7°C
9%
8°C
18%
9°C
22%
10°C
14%
11°C
13%
12°C or higher
14%
9°C 22%
8°C 18%
10°C 14%
12°C or higher 14%
2°C or below
<1%
3°C
1%
4°C
1%
5°C
2%
6°C
6%
7°C
9%
8°C
18%
9°C
22%
10°C
14%
11°C
13%
12°C or higher
14%
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 forecast update issued early April 2 projects a high of 6°C at Toronto Pearson International Airport on April 5 amid persistent cloud cover and a 30% chance of showers from an approaching low-pressure trough, yet trader sentiment clusters tightly around 8–9°C (topping at 22% and 17.5%) reflecting uncertainty in global model ensembles like GFS and ECMWF, where some members forecast partial clearing or delayed cooling for highs up to 12°C. Differentiating factors include low-level moisture persistence, frontal timing, and wind speeds influencing diurnal heating against early April climatological norms near 10°C. New model runs and afternoon guidance updates will likely sharpen resolution criteria before the event.
Experimental AI-generated summary referencing Polymarket data · Updated
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