Trader consensus on Polymarket heavily favors a high of 3°C in Toronto on March 23 (38.5% implied probability), driven by Environment Canada's latest forecast projecting a daytime maximum near 3°C under cloudy skies with possible flurries, amid a lingering cool air mass from recent Arctic outbreaks. Supporting this, global models like GFS and GEM show consensus highs of 2-4°C, reflecting below-normal March conditions—Toronto's historical average is 6°C—due to a stubborn upper-level trough over eastern Canada suppressing warming. Lower odds for 5°C+ (16%) align with minimal solar insolation and northerly winds, while sub-2°C outcomes (<15% combined) recede as mild recovery signals emerge in ensemble projections; traders eye tomorrow's 12Z model updates for shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on March 23?
Highest temperature in Toronto on March 23?
3°C 39%
4°C 24%
2°C 21%
5°C or higher 16%
-5°C or below
<1%
-4°C
1%
-3°C
1%
-2°C
1%
-1°C
1%
0°C
3%
1°C
10%
2°C
21%
3°C
39%
4°C
24%
5°C or higher
16%
3°C 39%
4°C 24%
2°C 21%
5°C or higher 16%
-5°C or below
<1%
-4°C
1%
-3°C
1%
-2°C
1%
-1°C
1%
0°C
3%
1°C
10%
2°C
21%
3°C
39%
4°C
24%
5°C or higher
16%
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 19, 2026, 6:01 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 3°C in Toronto on March 23 (38.5% implied probability), driven by Environment Canada's latest forecast projecting a daytime maximum near 3°C under cloudy skies with possible flurries, amid a lingering cool air mass from recent Arctic outbreaks. Supporting this, global models like GFS and GEM show consensus highs of 2-4°C, reflecting below-normal March conditions—Toronto's historical average is 6°C—due to a stubborn upper-level trough over eastern Canada suppressing warming. Lower odds for 5°C+ (16%) align with minimal solar insolation and northerly winds, while sub-2°C outcomes (<15% combined) recede as mild recovery signals emerge in ensemble projections; traders eye tomorrow's 12Z model updates for shifts.
Experimental AI-generated summary referencing Polymarket data · Updated
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