Persistent southwest monsoon conditions and below-average rainfall across Singapore have sustained elevated daytime maxima, with official forecasts from the Meteorological Service Singapore projecting daily highs of 33–35°C through the first half of September. On September 5, real-time observations and model consensus point to a peak air temperature of 33°C at reference stations such as Changi, consistent with the market-implied 99.9% probability. High humidity and light southeasterly winds limit evaporative cooling, reinforcing the outcome. A late-afternoon thundery shower or stronger localized convection could cap readings below this threshold, while any upward revision in official station data remains the primary uncertainty before market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Singapore on September 5?
33°C 100.0%
34°C <1%
28°C or below <1%
29°C <1%
$40,847 Vol.
$40,847 Vol.
28°C or below
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
100%
34°C
<1%
35°C
<1%
36°C
<1%
37°C
<1%
38°C or higher
<1%
33°C 100.0%
34°C <1%
28°C or below <1%
29°C <1%
$40,847 Vol.
$40,847 Vol.
28°C or below
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°C
<1%
33°C
100%
34°C
<1%
35°C
<1%
36°C
<1%
37°C
<1%
38°C or higher
<1%
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=wsss
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 3, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
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=wsss
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=wsssResolver
0x69c47De9D...Persistent southwest monsoon conditions and below-average rainfall across Singapore have sustained elevated daytime maxima, with official forecasts from the Meteorological Service Singapore projecting daily highs of 33–35°C through the first half of September. On September 5, real-time observations and model consensus point to a peak air temperature of 33°C at reference stations such as Changi, consistent with the market-implied 99.9% probability. High humidity and light southeasterly winds limit evaporative cooling, reinforcing the outcome. A late-afternoon thundery shower or stronger localized convection could cap readings below this threshold, while any upward revision in official station data remains the primary uncertainty before market 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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