Environment Canada's forecast issued April 2 projects a high of 10°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader sentiment around nearby outcomes like 10°C (19.5% implied probability) and 11°C or higher (26%). This reflects model consensus from GFS and ECMWF ensembles showing temperatures clustered between 8–12°C, influenced by persistent low-level clouds from a weak upper-level trough over southern Ontario and moderating Lake Ontario breezes limiting extremes. Uncertainty stems from potential afternoon clearing or shower intensity, which could suppress peaks below 9°C (16.5%) or allow brief spikes above 11°C; early April climatology averages 8–10°C highs, amplifying variability. Watch for updated 5 PM EDT guidance today, as new soundings may refine diurnal heating potential.
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 25%
8°C 19%
10°C 18%
9°C 17%
$37,195 Vol.
$37,195 Vol.
Apr 4, 2026
1°C or below
<1%
2°C
<1%
3°C
<1%
4°C
1%
5°C
1%
6°C
4%
7°C
7%
8°C
19%
9°C
17%
10°C
18%
11°C or higher
25%
11°C or higher 25%
8°C 19%
10°C 18%
9°C 17%
$37,195 Vol.
$37,195 Vol.
Apr 4, 2026
1°C or below
$5,228 Vol.
<1%
2°C
$2,958 Vol.
<1%
3°C
$2,287 Vol.
<1%
4°C
$2,965 Vol.
1%
5°C
$2,948 Vol.
1%
6°C
$2,516 Vol.
4%
7°C
$3,112 Vol.
7%
8°C
$3,722 Vol.
19%
9°C
$2,934 Vol.
17%
10°C
$3,100 Vol.
18%
11°C or higher
$5,448 Vol.
25%
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Apr '26.
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.Environment Canada's forecast issued April 2 projects a high of 10°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader sentiment around nearby outcomes like 10°C (19.5% implied probability) and 11°C or higher (26%). This reflects model consensus from GFS and ECMWF ensembles showing temperatures clustered between 8–12°C, influenced by persistent low-level clouds from a weak upper-level trough over southern Ontario and moderating Lake Ontario breezes limiting extremes. Uncertainty stems from potential afternoon clearing or shower intensity, which could suppress peaks below 9°C (16.5%) or allow brief spikes above 11°C; early April climatology averages 8–10°C highs, amplifying variability. Watch for updated 5 PM EDT guidance today, as new soundings may refine diurnal heating potential.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Apr '26.
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.
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
Volume
$37,195End Date
Apr 4, 2026Market Opened
Mar 29, 2026, 5:26 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Apr '26.
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.Environment Canada's forecast issued April 2 projects a high of 10°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader sentiment around nearby outcomes like 10°C (19.5% implied probability) and 11°C or higher (26%). This reflects model consensus from GFS and ECMWF ensembles showing temperatures clustered between 8–12°C, influenced by persistent low-level clouds from a weak upper-level trough over southern Ontario and moderating Lake Ontario breezes limiting extremes. Uncertainty stems from potential afternoon clearing or shower intensity, which could suppress peaks below 9°C (16.5%) or allow brief spikes above 11°C; early April climatology averages 8–10°C highs, amplifying variability. Watch for updated 5 PM EDT guidance today, as new soundings may refine diurnal heating potential.
This market will resolve to the temperature range that contains the highest temperature recorded at the Toronto Pearson Intl Airport Station in degrees Celsius on 4 Apr '26.
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.
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.
Volume
$37,195End Date
Apr 4, 2026Market Opened
Mar 29, 2026, 5:26 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Environment Canada's forecast issued April 2 projects a high of 10°C in Toronto on April 4 under cloudy skies with a 60% chance of showers, anchoring trader sentiment around nearby outcomes like 10°C (19.5% implied probability) and 11°C or higher (26%). This reflects model consensus from GFS and ECMWF ensembles showing temperatures clustered between 8–12°C, influenced by persistent low-level clouds from a weak upper-level trough over southern Ontario and moderating Lake Ontario breezes limiting extremes. Uncertainty stems from potential afternoon clearing or shower intensity, which could suppress peaks below 9°C (16.5%) or allow brief spikes above 11°C; early April climatology averages 8–10°C highs, amplifying variability. Watch for updated 5 PM EDT guidance today, as new soundings may refine diurnal heating potential.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions