Recent official forecasts from Environment Canada and ensemble models indicate mostly sunny conditions over Toronto on June 29, supporting maximum temperatures near 27–29°C as the primary driver of the closely matched market odds. Clear skies and light southerly flow under a building ridge favor strong daytime heating, while modest humidity and limited mixing keep peaks from exceeding the low 30s. Model guidance shows narrow spread around these values, with small differences in timing of peak insolation or boundary-layer moisture explaining the tight clustering between 27°C, 28°C, and 29°C. Updated model runs and afternoon observations tomorrow will provide the final resolution data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Toronto on June 29?
Highest temperature in Toronto on June 29?
28°C 32%
27°C 24%
29°C 24%
30°C 9%
NEW
NEW
Jun 29, 2026
24°C or below
2%
25°C
1%
26°C
6%
27°C
24%
28°C
32%
29°C
24%
30°C
9%
31°C
3%
32°C
1%
33°C
<1%
34°C or higher
<1%
28°C 32%
27°C 24%
29°C 24%
30°C 9%
NEW
NEW
Jun 29, 2026
24°C or below
$239 Vol.
2%
25°C
$53 Vol.
1%
26°C
$129 Vol.
6%
27°C
$126 Vol.
24%
28°C
$94 Vol.
32%
29°C
$262 Vol.
24%
30°C
$230 Vol.
9%
31°C
$129 Vol.
3%
32°C
$88 Vol.
1%
33°C
$93 Vol.
<1%
34°C or higher
$265 Vol.
<1%
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 29 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Recent official forecasts from Environment Canada and ensemble models indicate mostly sunny conditions over Toronto on June 29, supporting maximum temperatures near 27–29°C as the primary driver of the closely matched market odds. Clear skies and light southerly flow under a building ridge favor strong daytime heating, while modest humidity and limited mixing keep peaks from exceeding the low 30s. Model guidance shows narrow spread around these values, with small differences in timing of peak insolation or boundary-layer moisture explaining the tight clustering between 27°C, 28°C, and 29°C. Updated model runs and afternoon observations tomorrow will provide the final resolution data.
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 29 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jun 27, 2026, 9:02 PM ET
Volume
$1,707End Date
Jun 29, 2026Market Opened
Jun 27, 2026, 9:02 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 29 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Recent official forecasts from Environment Canada and ensemble models indicate mostly sunny conditions over Toronto on June 29, supporting maximum temperatures near 27–29°C as the primary driver of the closely matched market odds. Clear skies and light southerly flow under a building ridge favor strong daytime heating, while modest humidity and limited mixing keep peaks from exceeding the low 30s. Model guidance shows narrow spread around these values, with small differences in timing of peak insolation or boundary-layer moisture explaining the tight clustering between 27°C, 28°C, and 29°C. Updated model runs and afternoon observations tomorrow will provide the final resolution data.
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 29 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Toronto Pearson Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$1,707End Date
Jun 29, 2026Market Opened
Jun 27, 2026, 9:02 PM ETResolution Source
https://www.wunderground.com/history/daily/ca/mississauga/CYYZResolver
0x69c47De9D...Recent official forecasts from Environment Canada and ensemble models indicate mostly sunny conditions over Toronto on June 29, supporting maximum temperatures near 27–29°C as the primary driver of the closely matched market odds. Clear skies and light southerly flow under a building ridge favor strong daytime heating, while modest humidity and limited mixing keep peaks from exceeding the low 30s. Model guidance shows narrow spread around these values, with small differences in timing of peak insolation or boundary-layer moisture explaining the tight clustering between 27°C, 28°C, and 29°C. Updated model runs and afternoon observations tomorrow will provide the final resolution data.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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