**Trader consensus at 100% implied probability for a 19°C low at Incheon International Airport on September 24, 2026, reflects consistent forecasts from meteorological models showing overnight minimums stabilizing near 66–67°F (19°C).** Current observations and guidance indicate partly to mostly cloudy conditions with light winds and high humidity limiting further radiative cooling, keeping the low in this narrow range. Historical September climatology for the Seoul-Incheon area supports typical overnight lows in the mid-to-upper 60s°F during late-month transitions. The market prices near-certainty because updated model runs show minimal divergence on this threshold, with resolution hinging on the official 24-hour minimum recorded at the station. Only a sharp, unanticipated shift in steering flow or clearer skies enhancing cooling could realistically push the reading below 18°C or above 20°C before midnight local time.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Seoul (Incheon) on September 24?
19°C 99.9%
15°C or below <1%
16°C <1%
17°C <1%
$8,106 Vol.
$8,106 Vol.
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
100%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C or higher
<1%
19°C 99.9%
15°C or below <1%
16°C <1%
17°C <1%
$8,106 Vol.
$8,106 Vol.
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
100%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°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=rksi
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 22, 2026, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rksiResolver
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=rksi
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=rksiResolver
0x69c47de9d...**Trader consensus at 100% implied probability for a 19°C low at Incheon International Airport on September 24, 2026, reflects consistent forecasts from meteorological models showing overnight minimums stabilizing near 66–67°F (19°C).** Current observations and guidance indicate partly to mostly cloudy conditions with light winds and high humidity limiting further radiative cooling, keeping the low in this narrow range. Historical September climatology for the Seoul-Incheon area supports typical overnight lows in the mid-to-upper 60s°F during late-month transitions. The market prices near-certainty because updated model runs show minimal divergence on this threshold, with resolution hinging on the official 24-hour minimum recorded at the station. Only a sharp, unanticipated shift in steering flow or clearer skies enhancing cooling could realistically push the reading below 18°C or above 20°C before midnight local time.
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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