Official Environment Canada forecasts for Toronto indicate a Thursday night low of 17°C under cloudy periods and light northwest winds following Wednesday’s humid, stormy conditions. This consensus, supported by GFS and regional model runs, reflects typical early-September radiational cooling after a warm, moist air mass retreats, with dew points dropping into the mid-teens Celsius and limited cloud cover overnight. Historical averages place the September 3 minimum near 16°C, so current guidance aligns closely with climatology rather than extremes. Traders’ near-even split between sub-15°C and 25°C+ outcomes highlights model spread in boundary-layer moisture and wind speed, with updated NHC and CMC runs due before resolution likely tightening the implied range around 17–19°C.
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 3?
Lowest temperature in Toronto on September 3?
15°C or below 92%
25°C or higher 89%
24°C 49%
19°C 27%
NEW
NEW
Sep 3, 2026
15°C or below
92%
16°C
9%
17°C
26%
18°C
26%
19°C
27%
20°C
27%
21°C
25%
22°C
25%
23°C
25%
24°C
49%
25°C or higher
89%
15°C or below 92%
25°C or higher 89%
24°C 49%
19°C 27%
NEW
NEW
Sep 3, 2026
15°C or below
$10 Vol.
92%
16°C
$229 Vol.
9%
17°C
$0 Vol.
26%
18°C
$0 Vol.
26%
19°C
$0 Vol.
27%
20°C
$0 Vol.
27%
21°C
$0 Vol.
25%
22°C
$0 Vol.
25%
23°C
$0 Vol.
25%
24°C
$10 Vol.
49%
25°C or higher
$10 Vol.
89%
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 3 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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 Environment Canada forecasts for Toronto indicate a Thursday night low of 17°C under cloudy periods and light northwest winds following Wednesday’s humid, stormy conditions. This consensus, supported by GFS and regional model runs, reflects typical early-September radiational cooling after a warm, moist air mass retreats, with dew points dropping into the mid-teens Celsius and limited cloud cover overnight. Historical averages place the September 3 minimum near 16°C, so current guidance aligns closely with climatology rather than extremes. Traders’ near-even split between sub-15°C and 25°C+ outcomes highlights model spread in boundary-layer moisture and wind speed, with updated NHC and CMC runs due before resolution likely tightening the implied range around 17–19°C.
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 3 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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 1, 2026, 8:29 AM ET
Volume
$259End Date
Sep 3, 2026Market Opened
Sep 1, 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 3 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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 Environment Canada forecasts for Toronto indicate a Thursday night low of 17°C under cloudy periods and light northwest winds following Wednesday’s humid, stormy conditions. This consensus, supported by GFS and regional model runs, reflects typical early-September radiational cooling after a warm, moist air mass retreats, with dew points dropping into the mid-teens Celsius and limited cloud cover overnight. Historical averages place the September 3 minimum near 16°C, so current guidance aligns closely with climatology rather than extremes. Traders’ near-even split between sub-15°C and 25°C+ outcomes highlights model spread in boundary-layer moisture and wind speed, with updated NHC and CMC runs due before resolution likely tightening the implied range around 17–19°C.
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 3 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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 that 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 will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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
$259End Date
Sep 3, 2026Market Opened
Sep 1, 2026, 8:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Official Environment Canada forecasts for Toronto indicate a Thursday night low of 17°C under cloudy periods and light northwest winds following Wednesday’s humid, stormy conditions. This consensus, supported by GFS and regional model runs, reflects typical early-September radiational cooling after a warm, moist air mass retreats, with dew points dropping into the mid-teens Celsius and limited cloud cover overnight. Historical averages place the September 3 minimum near 16°C, so current guidance aligns closely with climatology rather than extremes. Traders’ near-even split between sub-15°C and 25°C+ outcomes highlights model spread in boundary-layer moisture and wind speed, with updated NHC and CMC runs due before resolution likely tightening the implied range around 17–19°C.
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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