Singapore's equatorial climate and ongoing southwest monsoon conditions keep overnight minimum temperatures tightly clustered, with trader odds clustered around 24–27°C reflecting forecast uncertainty in cloud cover and shower timing for September 23. Persistent high humidity above 80% and scattered thundery showers—common in the second half of September—limit radiative cooling after sunset, while light variable winds offer little mixing. Official outlooks note minimums typically above 27°C but allow brief dips near 25°C under clearer breaks, consistent with recent station readings and model spreads. New forecast updates from the Meteorological Service Singapore and hourly observations will likely refine these narrow probabilities ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Singapore on September 23?
28°C 40%
26°C 23%
25°C 22%
24°C 22%
22°C or below
1%
23°C
15%
24°C
22%
25°C
22%
26°C
23%
27°C
22%
28°C
40%
29°C
1%
30°C
1%
31°C
1%
32°C or higher
1%
28°C 40%
26°C 23%
25°C 22%
24°C 22%
22°C or below
1%
23°C
15%
24°C
22%
25°C
22%
26°C
23%
27°C
22%
28°C
40%
29°C
1%
30°C
1%
31°C
1%
32°C or higher
1%
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=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, 12:30 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 lowest 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 equatorial climate and ongoing southwest monsoon conditions keep overnight minimum temperatures tightly clustered, with trader odds clustered around 24–27°C reflecting forecast uncertainty in cloud cover and shower timing for September 23. Persistent high humidity above 80% and scattered thundery showers—common in the second half of September—limit radiative cooling after sunset, while light variable winds offer little mixing. Official outlooks note minimums typically above 27°C but allow brief dips near 25°C under clearer breaks, consistent with recent station readings and model spreads. New forecast updates from the Meteorological Service Singapore and hourly observations will likely refine these narrow probabilities ahead of 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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