Trader consensus overwhelmingly favors a high temperature of 12°C or below in Toronto on March 22, with 99.3% implied probability, driven by the latest Environment and Climate Change Canada forecasts predicting a daytime maximum around 5–8°C amid persistent arctic air and northerly winds. Historical March averages hover near 6°C, reinforced by current GFS and ECMWF model runs showing no warm-up signals through midday peaks, when highest temperatures typically occur. This positioning aligns with verified hourly projections from official monitoring. Realistic challenges include an unforeseen southerly wind shift or model forecast bust, though low-confidence ensemble outliers price such risks at under 1%.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Toronto on March 22?
Highest temperature in Toronto on March 22?
12°C or below 99.3%
13°C <1%
14°C <1%
16°C <1%
$104,799 Vol.
$104,799 Vol.
12°C or below
99%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C or higher
<1%
12°C or below 99.3%
13°C <1%
14°C <1%
16°C <1%
$104,799 Vol.
$104,799 Vol.
12°C or below
99%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°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 18, 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 overwhelmingly favors a high temperature of 12°C or below in Toronto on March 22, with 99.3% implied probability, driven by the latest Environment and Climate Change Canada forecasts predicting a daytime maximum around 5–8°C amid persistent arctic air and northerly winds. Historical March averages hover near 6°C, reinforced by current GFS and ECMWF model runs showing no warm-up signals through midday peaks, when highest temperatures typically occur. This positioning aligns with verified hourly projections from official monitoring. Realistic challenges include an unforeseen southerly wind shift or model forecast bust, though low-confidence ensemble outliers price such risks at under 1%.
Experimental AI-generated summary referencing Polymarket data · Updated
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