Recent forecasts from Environment Canada and global models indicate partly cloudy skies over Toronto on August 25 with northwest winds of 5–10 km/h moderating daytime heating, supporting a high near 23–25°C. This aligns with the historical average high of 25.4°C while reflecting cooler recent conditions and limited moisture return. Model consensus shows minimal diurnal range and low precipitation risk, keeping the distribution tightly centered on 24°C and 25°C outcomes. Trader-implied odds near 41% and 38% respectively capture residual uncertainty from small timing differences in clearing and boundary-layer mixing, while probabilities drop sharply outside 22–26°C given the stable synoptic pattern.
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 August 25?
Highest temperature in Toronto on August 25?
24°C 41%
25°C 38%
23°C 10%
26°C 9%
NEW
NEW
Aug 25, 2026
19°C or below
<1%
20°C
1%
21°C
1%
22°C
4%
23°C
10%
24°C
41%
25°C
38%
26°C
9%
27°C
1%
28°C
1%
29°C or higher
<1%
24°C 41%
25°C 38%
23°C 10%
26°C 9%
NEW
NEW
Aug 25, 2026
19°C or below
$93 Vol.
<1%
20°C
$93 Vol.
1%
21°C
$13 Vol.
1%
22°C
$8 Vol.
4%
23°C
$270 Vol.
10%
24°C
$135 Vol.
41%
25°C
$41 Vol.
38%
26°C
$60 Vol.
9%
27°C
$33 Vol.
1%
28°C
$76 Vol.
1%
29°C or higher
$106 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 25 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 forecasts from Environment Canada and global models indicate partly cloudy skies over Toronto on August 25 with northwest winds of 5–10 km/h moderating daytime heating, supporting a high near 23–25°C. This aligns with the historical average high of 25.4°C while reflecting cooler recent conditions and limited moisture return. Model consensus shows minimal diurnal range and low precipitation risk, keeping the distribution tightly centered on 24°C and 25°C outcomes. Trader-implied odds near 41% and 38% respectively capture residual uncertainty from small timing differences in clearing and boundary-layer mixing, while probabilities drop sharply outside 22–26°C given the stable synoptic pattern.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 25 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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: Aug 23, 2026, 8:56 PM ET
Volume
$928End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 8:56 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 25 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 forecasts from Environment Canada and global models indicate partly cloudy skies over Toronto on August 25 with northwest winds of 5–10 km/h moderating daytime heating, supporting a high near 23–25°C. This aligns with the historical average high of 25.4°C while reflecting cooler recent conditions and limited moisture return. Model consensus shows minimal diurnal range and low precipitation risk, keeping the distribution tightly centered on 24°C and 25°C outcomes. Trader-implied odds near 41% and 38% respectively capture residual uncertainty from small timing differences in clearing and boundary-layer mixing, while probabilities drop sharply outside 22–26°C given the stable synoptic pattern.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 25 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=cyyz
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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
$928End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 8:56 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent forecasts from Environment Canada and global models indicate partly cloudy skies over Toronto on August 25 with northwest winds of 5–10 km/h moderating daytime heating, supporting a high near 23–25°C. This aligns with the historical average high of 25.4°C while reflecting cooler recent conditions and limited moisture return. Model consensus shows minimal diurnal range and low precipitation risk, keeping the distribution tightly centered on 24°C and 25°C outcomes. Trader-implied odds near 41% and 38% respectively capture residual uncertainty from small timing differences in clearing and boundary-layer mixing, while probabilities drop sharply outside 22–26°C given the stable synoptic pattern.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions