Recent official forecasts from Environment Canada project a minimum of 15°C for Toronto on August 25 under partly cloudy skies and northwest winds of 10–20 km/h, supporting radiational cooling after daytime highs near 25°C. Model consensus across sources aligns on this range, with historical August averages near 17°C providing context for the expected dip. Trader-implied probabilities cluster tightly around 15–17°C (collectively over 85%) due to minor uncertainties in exact overnight clearing timing and wind speeds that could shift the low by 1–2°C. Updated model runs and Environment Canada briefings expected overnight will likely refine these odds ahead of resolution.
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 25?
11°C or below 49%
12°C 47%
16°C 36%
20°C 34%
11°C or below
49%
12°C
47%
13°C
9%
14°C
23%
15°C
27%
16°C
36%
17°C
27%
18°C
26%
19°C
5%
20°C
34%
21°C or higher
2%
11°C or below 49%
12°C 47%
16°C 36%
20°C 34%
11°C or below
49%
12°C
47%
13°C
9%
14°C
23%
15°C
27%
16°C
36%
17°C
27%
18°C
26%
19°C
5%
20°C
34%
21°C or higher
2%
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
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, 9:29 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 lowest 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Recent official forecasts from Environment Canada project a minimum of 15°C for Toronto on August 25 under partly cloudy skies and northwest winds of 10–20 km/h, supporting radiational cooling after daytime highs near 25°C. Model consensus across sources aligns on this range, with historical August averages near 17°C providing context for the expected dip. Trader-implied probabilities cluster tightly around 15–17°C (collectively over 85%) due to minor uncertainties in exact overnight clearing timing and wind speeds that could shift the low by 1–2°C. Updated model runs and Environment Canada briefings expected overnight will likely refine these odds ahead of 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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