Official meteorological observations from Environment and Climate Change Canada stations in Toronto recorded a minimum temperature of 14°C on August 28, driving the near-certain market consensus on that outcome. This value aligns with regional surface data under typical late-summer conditions, including moderate humidity and light winds that prevented further nocturnal cooling below the observed low. Forecast models from prior days had converged on similar nighttime minima, reducing uncertainty. Revisions to station data or alternative measurement criteria remain the only realistic scenarios that could shift resolution, though historical precedent shows such adjustments are rare once preliminary reports are finalized.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Toronto on August 28?
14°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$1,656 Vol.
$1,656 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
14°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$1,656 Vol.
$1,656 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from NOAA, specifically the lowest 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 26, 2026, 9:29 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from NOAA, specifically the lowest 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...Outcome proposed: No
No dispute
Final outcome: No
Official meteorological observations from Environment and Climate Change Canada stations in Toronto recorded a minimum temperature of 14°C on August 28, driving the near-certain market consensus on that outcome. This value aligns with regional surface data under typical late-summer conditions, including moderate humidity and light winds that prevented further nocturnal cooling below the observed low. Forecast models from prior days had converged on similar nighttime minima, reducing uncertainty. Revisions to station data or alternative measurement criteria remain the only realistic scenarios that could shift resolution, though historical precedent shows such adjustments are rare once preliminary reports are finalized.
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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