Environment Canada’s latest forecast, issued early April 1, predicts a high of 13°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader consensus at 45.5% implied probability for 11°C or higher while distributing remaining odds across 7–10°C outcomes amid uncertainty in daytime heating. Current northerly gusts to 40 km/h and morning lows near 2°C reflect a lingering cool air mass following recent cloudy conditions, but model consensus anticipates a warm front boosting temperatures Friday through Saturday before showers potentially cap peaks via reduced solar insolation. Historical early-April normals hover around 9°C, with new forecast updates expected daily from Environment Canada and ensemble models like GFS and ECMWF to refine trajectories ahead of resolution based on official Pearson Airport observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on April 4?
Highest temperature in Toronto on April 4?
11°C or higher 46%
8°C 17%
9°C 16%
10°C 14%
$14,706 Vol.
$14,706 Vol.
1°C or below
<1%
2°C
<1%
3°C
1%
4°C
1%
5°C
2%
6°C
3%
7°C
8%
8°C
17%
9°C
16%
10°C
14%
11°C or higher
46%
11°C or higher 46%
8°C 17%
9°C 16%
10°C 14%
$14,706 Vol.
$14,706 Vol.
1°C or below
<1%
2°C
<1%
3°C
1%
4°C
1%
5°C
2%
6°C
3%
7°C
8%
8°C
17%
9°C
16%
10°C
14%
11°C or higher
46%
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: Mar 29, 2026, 5:26 PM 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, issued early April 1, predicts a high of 13°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader consensus at 45.5% implied probability for 11°C or higher while distributing remaining odds across 7–10°C outcomes amid uncertainty in daytime heating. Current northerly gusts to 40 km/h and morning lows near 2°C reflect a lingering cool air mass following recent cloudy conditions, but model consensus anticipates a warm front boosting temperatures Friday through Saturday before showers potentially cap peaks via reduced solar insolation. Historical early-April normals hover around 9°C, with new forecast updates expected daily from Environment Canada and ensemble models like GFS and ECMWF to refine trajectories ahead of resolution based on official Pearson Airport observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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