Trader consensus on Polymarket heavily favors a high of 13°C (32.5% implied probability) for Toronto on March 26, driven by the latest Environment Canada and ECMWF model runs forecasting mild conditions under a high-pressure ridge over eastern North America. Supporting 12°C (22.4%) and 14°C (15%) outcomes reflect model spread amid uncertainty from variable jet stream positioning and potential lake-effect moderation from Lake Ontario. Key variables include cloud cover limiting solar insolation, wind speeds influencing mixing, and the timing of any weak frontal boundary, with historical late-March averages around 7-10°C underscoring the bullish warmth bias but highlighting volatility in spring transitional weather. Upcoming 00Z model updates could shift odds further.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on March 26?
Highest temperature in Toronto on March 26?
13°C 32%
12°C 22.3%
14°C 15.3%
11°C 12%
$15,403 Vol.
$15,403 Vol.
8°C or below
3%
9°C
3%
10°C
4%
11°C
12%
12°C
22%
13°C
32%
14°C
15%
15°C
4%
16°C
3%
17°C
1%
18°C or higher
1%
13°C 32%
12°C 22.3%
14°C 15.3%
11°C 12%
$15,403 Vol.
$15,403 Vol.
8°C or below
3%
9°C
3%
10°C
4%
11°C
12%
12°C
22%
13°C
32%
14°C
15%
15°C
4%
16°C
3%
17°C
1%
18°C or higher
1%
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 22, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Trader consensus on Polymarket heavily favors a high of 13°C (32.5% implied probability) for Toronto on March 26, driven by the latest Environment Canada and ECMWF model runs forecasting mild conditions under a high-pressure ridge over eastern North America. Supporting 12°C (22.4%) and 14°C (15%) outcomes reflect model spread amid uncertainty from variable jet stream positioning and potential lake-effect moderation from Lake Ontario. Key variables include cloud cover limiting solar insolation, wind speeds influencing mixing, and the timing of any weak frontal boundary, with historical late-March averages around 7-10°C underscoring the bullish warmth bias but highlighting volatility in spring transitional weather. Upcoming 00Z model updates could shift odds further.
Experimental AI-generated summary referencing Polymarket data · Updated
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