Singapore’s Meteorological Service forecasts a maximum of 33°C for September 23 under prevailing southwest monsoon flow, with localized thundery showers expected from late morning into early afternoon. These convective events, driven by high humidity (65–95%) and daytime heating, often limit peak temperatures by increasing cloud cover and evaporative cooling. Recent observations show daily highs of 32–34°C, with the fortnightly outlook indicating 33–34°C as typical and occasional spikes near 35°C possible absent strong showers. Model consensus points to modest steering winds from the south, keeping conditions warm yet unsettled and creating the tight 32–33°C split in trader-implied odds. Updated NEA guidance and afternoon radar trends will refine resolution criteria ahead of market close.
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 23?
33°C 46%
32°C 46%
31°C 5%
34°C 5%
27°C or below
<1%
28°C
<1%
29°C
1%
30°C
2%
31°C
5%
32°C
46%
33°C
46%
34°C
5%
35°C
1%
36°C
<1%
37°C or higher
<1%
33°C 46%
32°C 46%
31°C 5%
34°C 5%
27°C or below
<1%
28°C
<1%
29°C
1%
30°C
2%
31°C
5%
32°C
46%
33°C
46%
34°C
5%
35°C
1%
36°C
<1%
37°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 21, 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...Singapore’s Meteorological Service forecasts a maximum of 33°C for September 23 under prevailing southwest monsoon flow, with localized thundery showers expected from late morning into early afternoon. These convective events, driven by high humidity (65–95%) and daytime heating, often limit peak temperatures by increasing cloud cover and evaporative cooling. Recent observations show daily highs of 32–34°C, with the fortnightly outlook indicating 33–34°C as typical and occasional spikes near 35°C possible absent strong showers. Model consensus points to modest steering winds from the south, keeping conditions warm yet unsettled and creating the tight 32–33°C split in trader-implied odds. Updated NEA guidance and afternoon radar trends will refine resolution criteria ahead of market close.
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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