Short-range ensemble forecasts from Environment Canada and NOAA models show Toronto maximum temperatures on September 3 clustered near 27–29 °C, producing tight market-implied odds around 28 °C. Primary drivers include the strength and position of an upper-level ridge over the Great Lakes, light southerly flow off Lake Ontario that limits daytime heating, and modest dewpoint values near 15 °C that suppress extreme surface maxima. Model spread in boundary-layer mixing and cloud cover keeps 27 °C and 28 °C probabilities nearly even, while a slight warm bias in some runs supports the 29 °C tail. Updated guidance expected within 24–36 hours will likely narrow the range ahead of resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Toronto on September 3?
28°C 43%
27°C 37%
29°C 18%
26°C 5%
23°C or below
4%
24°C
3%
25°C
3%
26°C
5%
27°C
37%
28°C
43%
29°C
18%
30°C
3%
31°C
2%
32°C
4%
33°C or higher
4%
28°C 43%
27°C 37%
29°C 18%
26°C 5%
23°C or below
4%
24°C
3%
25°C
3%
26°C
5%
27°C
37%
28°C
43%
29°C
18%
30°C
3%
31°C
2%
32°C
4%
33°C or higher
4%
The resolution source for this market will be information from NOAA, specifically the highest 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.
Binuksan ang Market: Sep 1, 2026, 8:55 AM 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 highest 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=cyyzResolver
0x69c47De9D...Short-range ensemble forecasts from Environment Canada and NOAA models show Toronto maximum temperatures on September 3 clustered near 27–29 °C, producing tight market-implied odds around 28 °C. Primary drivers include the strength and position of an upper-level ridge over the Great Lakes, light southerly flow off Lake Ontario that limits daytime heating, and modest dewpoint values near 15 °C that suppress extreme surface maxima. Model spread in boundary-layer mixing and cloud cover keeps 27 °C and 28 °C probabilities nearly even, while a slight warm bias in some runs supports the 29 °C tail. Updated guidance expected within 24–36 hours will likely narrow the range ahead of resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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