Current forecasts from Singapore's meteorological services project nighttime lows near 27°C on September 11 amid southwest monsoon conditions, with scattered thunderstorms and southeasterly winds limiting radiative cooling. This keeps the expected minimum within the typical September range of 25–28°C, where high humidity and cloud cover suppress temperature drops. Trader consensus splits nearly evenly between 21°C or below and 31°C or higher for the daily low, reflecting uncertainty in convective timing and local urban heat island effects that can shift overnight minima by 1–2°C. Official model runs show limited divergence, with resolution hinging on precise minimum readings from Changi or climate stations.
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 11?
31°C or higher 95%
21°C or below 83%
28°C 39%
27°C 28%
21°C or below
83%
22°C
13%
23°C
14%
24°C
5%
25°C
3%
26°C
21%
27°C
28%
28°C
39%
29°C
7%
30°C
3%
31°C or higher
95%
31°C or higher 95%
21°C or below 83%
28°C 39%
27°C 28%
21°C or below
83%
22°C
13%
23°C
14%
24°C
5%
25°C
3%
26°C
21%
27°C
28%
28°C
39%
29°C
7%
30°C
3%
31°C or higher
95%
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 9, 2026, 12:29 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...Current forecasts from Singapore's meteorological services project nighttime lows near 27°C on September 11 amid southwest monsoon conditions, with scattered thunderstorms and southeasterly winds limiting radiative cooling. This keeps the expected minimum within the typical September range of 25–28°C, where high humidity and cloud cover suppress temperature drops. Trader consensus splits nearly evenly between 21°C or below and 31°C or higher for the daily low, reflecting uncertainty in convective timing and local urban heat island effects that can shift overnight minima by 1–2°C. Official model runs show limited divergence, with resolution hinging on precise minimum readings from Changi or climate stations.
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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