Recent short-range forecasts and the official Meteorological Service Singapore fortnightly outlook point to maximum temperatures of 32–33°C on September 20 under prevailing southwest monsoon flow, with localized thundery showers expected in the afternoon that can cap peaks through increased cloud cover and evaporative cooling. This aligns with the closely matched market-implied odds favoring 33°C at 49% over 32°C at 41%, reflecting trader assessment of typical late-September conditions after a hotter early-month period that saw multiple days above 34°C. Afternoon convection and southeast winds near 8–10 mph remain key variables that could shift the daily high by 1°C depending on timing and intensity of showers, with updated model guidance and the next daily forecast expected to refine probabilities ahead of 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 20?
Highest temperature in Singapore on September 20?
33°C 49%
32°C 41%
34°C 9%
31°C 7%
NEW
NEW
Sep 20, 2026
28°C or below
<1%
29°C
2%
30°C
2%
31°C
7%
32°C
41%
33°C
49%
34°C
9%
35°C
1%
36°C
1%
37°C
<1%
38°C or higher
<1%
33°C 49%
32°C 41%
34°C 9%
31°C 7%
NEW
NEW
Sep 20, 2026
28°C or below
$140 Vol.
<1%
29°C
$5 Vol.
2%
30°C
$0 Vol.
2%
31°C
$107 Vol.
7%
32°C
$91 Vol.
41%
33°C
$666 Vol.
49%
34°C
$42 Vol.
9%
35°C
$25 Vol.
1%
36°C
$84 Vol.
1%
37°C
$181 Vol.
<1%
38°C or higher
$181 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 20 Sep '26.
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.Recent short-range forecasts and the official Meteorological Service Singapore fortnightly outlook point to maximum temperatures of 32–33°C on September 20 under prevailing southwest monsoon flow, with localized thundery showers expected in the afternoon that can cap peaks through increased cloud cover and evaporative cooling. This aligns with the closely matched market-implied odds favoring 33°C at 49% over 32°C at 41%, reflecting trader assessment of typical late-September conditions after a hotter early-month period that saw multiple days above 34°C. Afternoon convection and southeast winds near 8–10 mph remain key variables that could shift the daily high by 1°C depending on timing and intensity of showers, with updated model guidance and the next daily forecast expected to refine probabilities ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 20 Sep '26.
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.
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 18, 2026, 12:57 AM ET
Volume
$1,522End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 20 Sep '26.
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.Recent short-range forecasts and the official Meteorological Service Singapore fortnightly outlook point to maximum temperatures of 32–33°C on September 20 under prevailing southwest monsoon flow, with localized thundery showers expected in the afternoon that can cap peaks through increased cloud cover and evaporative cooling. This aligns with the closely matched market-implied odds favoring 33°C at 49% over 32°C at 41%, reflecting trader assessment of typical late-September conditions after a hotter early-month period that saw multiple days above 34°C. Afternoon convection and southeast winds near 8–10 mph remain key variables that could shift the daily high by 1°C depending on timing and intensity of showers, with updated model guidance and the next daily forecast expected to refine probabilities ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Singapore Changi Airport Station in degrees Celsius on 20 Sep '26.
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.
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.
Volume
$1,522End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=wsssResolver
0x69c47De9D...Recent short-range forecasts and the official Meteorological Service Singapore fortnightly outlook point to maximum temperatures of 32–33°C on September 20 under prevailing southwest monsoon flow, with localized thundery showers expected in the afternoon that can cap peaks through increased cloud cover and evaporative cooling. This aligns with the closely matched market-implied odds favoring 33°C at 49% over 32°C at 41%, reflecting trader assessment of typical late-September conditions after a hotter early-month period that saw multiple days above 34°C. Afternoon convection and southeast winds near 8–10 mph remain key variables that could shift the daily high by 1°C depending on timing and intensity of showers, with updated model guidance and the next daily forecast expected to refine probabilities ahead of 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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