The market's near-certain 100% implied probability on 24°C reflects official observations confirming that as Toronto's daily maximum on August 26, primarily from Environment Canada stations including Toronto Pearson International Airport. Weather data series show a peak of 24.0°C in the afternoon under partly cloudy conditions, with overnight lows near 15°C and no higher readings recorded. This aligns with climatological norms for late August, where average highs hover around 25°C but can vary with regional air masses and cloud cover. Traders priced in the outcome rapidly once preliminary station reports posted, as prediction markets aggregate real-time verification from authoritative meteorological sources. Revisions to final official records or discrepancies across microclimate stations remain the only realistic factors that could shift resolution.
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 26?
24°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$30,262 Vol.
$30,262 Vol.
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
100%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
24°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$30,262 Vol.
$30,262 Vol.
20°C or below
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
100%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
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
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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 24, 2026, 8:56 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...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
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...The market's near-certain 100% implied probability on 24°C reflects official observations confirming that as Toronto's daily maximum on August 26, primarily from Environment Canada stations including Toronto Pearson International Airport. Weather data series show a peak of 24.0°C in the afternoon under partly cloudy conditions, with overnight lows near 15°C and no higher readings recorded. This aligns with climatological norms for late August, where average highs hover around 25°C but can vary with regional air masses and cloud cover. Traders priced in the outcome rapidly once preliminary station reports posted, as prediction markets aggregate real-time verification from authoritative meteorological sources. Revisions to final official records or discrepancies across microclimate stations remain the only realistic factors that could shift resolution.
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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