Cool, moist westerly flow and widespread showers associated with a passing disturbance are the main drivers keeping overnight lows near 14–16 °C in Toronto on 23 August 2026. Environment Canada forecasts a nighttime minimum of 15 °C under mostly cloudy skies with 40 % chance of showers, while model guidance shows dew points holding in the 11–14 °C range that limits further radiative cooling. Light to moderate winds (20 km/h gusting higher) promote mixing that prevents sharper drops, yet any break in cloud cover or temporary wind lull could allow brief cooling toward the lower teens. The tight spread between the 10 °C-or-below and 16 °C contracts reflects ongoing uncertainty in the exact minimum recorded at the official observing site before sunrise, with final resolution hinging on the 24-hour temperature trace from Toronto Pearson.
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 23?
Lowest temperature in Toronto on August 23?
10°C or below 98%
16°C 47%
12°C 33%
13°C 33%
$1,725 Vol.
$1,725 Vol.
Aug 23, 2026
10°C or below
98%
11°C
5%
12°C
33%
13°C
33%
14°C
33%
15°C
33%
16°C
47%
17°C
<1%
18°C
<1%
19°C
<1%
20°C or higher
<1%
10°C or below 98%
16°C 47%
12°C 33%
13°C 33%
$1,725 Vol.
$1,725 Vol.
Aug 23, 2026
10°C or below
$15 Vol.
98%
11°C
$85 Vol.
5%
12°C
$0 Vol.
33%
13°C
$0 Vol.
33%
14°C
$0 Vol.
33%
15°C
$0 Vol.
33%
16°C
$0 Vol.
47%
17°C
$105 Vol.
<1%
18°C
$265 Vol.
<1%
19°C
$105 Vol.
<1%
20°C or higher
$1,150 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 23 Aug '26.
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.Cool, moist westerly flow and widespread showers associated with a passing disturbance are the main drivers keeping overnight lows near 14–16 °C in Toronto on 23 August 2026. Environment Canada forecasts a nighttime minimum of 15 °C under mostly cloudy skies with 40 % chance of showers, while model guidance shows dew points holding in the 11–14 °C range that limits further radiative cooling. Light to moderate winds (20 km/h gusting higher) promote mixing that prevents sharper drops, yet any break in cloud cover or temporary wind lull could allow brief cooling toward the lower teens. The tight spread between the 10 °C-or-below and 16 °C contracts reflects ongoing uncertainty in the exact minimum recorded at the official observing site before sunrise, with final resolution hinging on the 24-hour temperature trace from Toronto Pearson.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 23 Aug '26.
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.
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 22, 2026, 12:28 AM ET
Volume
$1,725End Date
Aug 23, 2026Market Opened
Aug 22, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 23 Aug '26.
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.Cool, moist westerly flow and widespread showers associated with a passing disturbance are the main drivers keeping overnight lows near 14–16 °C in Toronto on 23 August 2026. Environment Canada forecasts a nighttime minimum of 15 °C under mostly cloudy skies with 40 % chance of showers, while model guidance shows dew points holding in the 11–14 °C range that limits further radiative cooling. Light to moderate winds (20 km/h gusting higher) promote mixing that prevents sharper drops, yet any break in cloud cover or temporary wind lull could allow brief cooling toward the lower teens. The tight spread between the 10 °C-or-below and 16 °C contracts reflects ongoing uncertainty in the exact minimum recorded at the official observing site before sunrise, with final resolution hinging on the 24-hour temperature trace from Toronto Pearson.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Toronto Pearson Intl Airport Station in degrees Celsius on 23 Aug '26.
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.
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.
Volume
$1,725End Date
Aug 23, 2026Market Opened
Aug 22, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Cool, moist westerly flow and widespread showers associated with a passing disturbance are the main drivers keeping overnight lows near 14–16 °C in Toronto on 23 August 2026. Environment Canada forecasts a nighttime minimum of 15 °C under mostly cloudy skies with 40 % chance of showers, while model guidance shows dew points holding in the 11–14 °C range that limits further radiative cooling. Light to moderate winds (20 km/h gusting higher) promote mixing that prevents sharper drops, yet any break in cloud cover or temporary wind lull could allow brief cooling toward the lower teens. The tight spread between the 10 °C-or-below and 16 °C contracts reflects ongoing uncertainty in the exact minimum recorded at the official observing site before sunrise, with final resolution hinging on the 24-hour temperature trace from Toronto Pearson.
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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