Recent forecasts from multiple models, including GFS guidance referenced in official updates, point to a daily maximum near 27°C in the Seoul-Incheon region on September 17 under partly to mostly cloudy skies with moderate easterly flow. This setup limits afternoon heating compared to the clearer, warmer conditions observed on September 16, when highs reached 28–29°C. Historical mid-September baselines for the area average 25–26°C, but current surface pressure patterns and dew points around 14–16°C support the slightly elevated consensus. Traders appear to weigh the narrow spread across 26–28°C outcomes against potential model revisions in the final 24-hour forecast window, with 27°C holding the strongest implied probability due to alignment across agency guidance.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Seoul (Incheon) on September 17?
27°C 50%
26°C 28%
28°C 16%
25°C 5%
$13,918 Vol.
$13,918 Vol.
22°C or below
<1%
23°C
1%
24°C
<1%
25°C
5%
26°C
28%
27°C
50%
28°C
16%
29°C
3%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 50%
26°C 28%
28°C 16%
25°C 5%
$13,918 Vol.
$13,918 Vol.
22°C or below
<1%
23°C
1%
24°C
<1%
25°C
5%
26°C
28%
27°C
50%
28°C
16%
29°C
3%
30°C
<1%
31°C
<1%
32°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=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.
Binuksan ang Market: Sep 15, 2026, 12:56 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 highest 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...Recent forecasts from multiple models, including GFS guidance referenced in official updates, point to a daily maximum near 27°C in the Seoul-Incheon region on September 17 under partly to mostly cloudy skies with moderate easterly flow. This setup limits afternoon heating compared to the clearer, warmer conditions observed on September 16, when highs reached 28–29°C. Historical mid-September baselines for the area average 25–26°C, but current surface pressure patterns and dew points around 14–16°C support the slightly elevated consensus. Traders appear to weigh the narrow spread across 26–28°C outcomes against potential model revisions in the final 24-hour forecast window, with 27°C holding the strongest implied probability due to alignment across agency guidance.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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