Persistent cloud cover and widespread rain forecast for August 31 are capping daytime heating in the Seoul-Incheon area, keeping the highest temperature near 25–26 °C according to the latest KMA and global model guidance. Thick overcast skies and northeasterly flow reduce solar insolation while evaporative cooling from steady precipitation further limits the daily maximum, several degrees below the late-August climatological average. Minor differences among ensembles center on the exact timing and intensity of showers, which can shift the peak reading by 1–2 °C. Updated model runs and KMA briefings expected in the next 24–48 hours will clarify whether the high settles at 25 °C or edges toward 26–27 °C, directly influencing the closely matched market probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Seoul (Incheon) on August 31?
26°C 35%
25°C 28%
24°C 16%
27°C 15%
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
1%
23°C
2%
24°C
16%
25°C
28%
26°C
35%
27°C
15%
28°C
5%
29°C or higher
3%
26°C 35%
25°C 28%
24°C 16%
27°C 15%
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
1%
23°C
2%
24°C
16%
25°C
28%
26°C
35%
27°C
15%
28°C
5%
29°C or higher
3%
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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 29, 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.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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...Persistent cloud cover and widespread rain forecast for August 31 are capping daytime heating in the Seoul-Incheon area, keeping the highest temperature near 25–26 °C according to the latest KMA and global model guidance. Thick overcast skies and northeasterly flow reduce solar insolation while evaporative cooling from steady precipitation further limits the daily maximum, several degrees below the late-August climatological average. Minor differences among ensembles center on the exact timing and intensity of showers, which can shift the peak reading by 1–2 °C. Updated model runs and KMA briefings expected in the next 24–48 hours will clarify whether the high settles at 25 °C or edges toward 26–27 °C, directly influencing the closely matched market probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions