Official forecasts from Environment Canada and supporting models project overnight lows of 18–20 °C for Toronto on September 2, driven by persistent cloud cover, scattered showers or thunderstorms, and southerly flow advecting humid air. These conditions limit nocturnal radiative cooling compared with clearer, drier nights that historically allow temperatures to dip toward the 16 °C climatological average low. Model consensus shows little spread in minimum temperatures, with the main uncertainty tied to exact timing and intensity of precipitation, which can either suppress or briefly elevate readings. Trader sentiment around the 20 °C and 15 °C-or-below thresholds reflects this narrow forecast envelope, where modest shifts in cloud thickness or wind direction could determine whether the minimum settles near 20 °C or edges lower. Updated model runs and official briefings ahead of the overnight period remain the key near-term catalysts.
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 September 2?
Lowest temperature in Toronto on September 2?
15°C or below 99%
16°C 99%
17°C 99%
18°C 99%
NEW
NEW
Sep 2, 2026
15°C or below
99%
16°C
99%
17°C
99%
18°C
99%
19°C
99%
20°C
51%
21°C
99%
22°C
99%
23°C
99%
24°C
1%
25°C or higher
99%
15°C or below 99%
16°C 99%
17°C 99%
18°C 99%
NEW
NEW
Sep 2, 2026
15°C or below
$5 Vol.
99%
16°C
$5 Vol.
99%
17°C
$0 Vol.
99%
18°C
$0 Vol.
99%
19°C
$0 Vol.
99%
20°C
$0 Vol.
51%
21°C
$0 Vol.
99%
22°C
$0 Vol.
99%
23°C
$0 Vol.
99%
24°C
$0 Vol.
1%
25°C or higher
$5 Vol.
99%
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 2 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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.Official forecasts from Environment Canada and supporting models project overnight lows of 18–20 °C for Toronto on September 2, driven by persistent cloud cover, scattered showers or thunderstorms, and southerly flow advecting humid air. These conditions limit nocturnal radiative cooling compared with clearer, drier nights that historically allow temperatures to dip toward the 16 °C climatological average low. Model consensus shows little spread in minimum temperatures, with the main uncertainty tied to exact timing and intensity of precipitation, which can either suppress or briefly elevate readings. Trader sentiment around the 20 °C and 15 °C-or-below thresholds reflects this narrow forecast envelope, where modest shifts in cloud thickness or wind direction could determine whether the minimum settles near 20 °C or edges lower. Updated model runs and official briefings ahead of the overnight period remain the key near-term catalysts.
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 2 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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 31, 2026, 8:29 AM ET
Volume
$15End Date
Sep 2, 2026Market Opened
Aug 31, 2026, 8:29 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 2 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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.Official forecasts from Environment Canada and supporting models project overnight lows of 18–20 °C for Toronto on September 2, driven by persistent cloud cover, scattered showers or thunderstorms, and southerly flow advecting humid air. These conditions limit nocturnal radiative cooling compared with clearer, drier nights that historically allow temperatures to dip toward the 16 °C climatological average low. Model consensus shows little spread in minimum temperatures, with the main uncertainty tied to exact timing and intensity of precipitation, which can either suppress or briefly elevate readings. Trader sentiment around the 20 °C and 15 °C-or-below thresholds reflects this narrow forecast envelope, where modest shifts in cloud thickness or wind direction could determine whether the minimum settles near 20 °C or edges lower. Updated model runs and official briefings ahead of the overnight period remain the key near-term catalysts.
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 2 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event which there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
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
$15End Date
Sep 2, 2026Market Opened
Aug 31, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Official forecasts from Environment Canada and supporting models project overnight lows of 18–20 °C for Toronto on September 2, driven by persistent cloud cover, scattered showers or thunderstorms, and southerly flow advecting humid air. These conditions limit nocturnal radiative cooling compared with clearer, drier nights that historically allow temperatures to dip toward the 16 °C climatological average low. Model consensus shows little spread in minimum temperatures, with the main uncertainty tied to exact timing and intensity of precipitation, which can either suppress or briefly elevate readings. Trader sentiment around the 20 °C and 15 °C-or-below thresholds reflects this narrow forecast envelope, where modest shifts in cloud thickness or wind direction could determine whether the minimum settles near 20 °C or edges lower. Updated model runs and official briefings ahead of the overnight period remain the key near-term catalysts.
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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