**Forecast consensus from regional models points to a maximum of 28–29 °C in Incheon on September 7, aligning with the market’s heaviest weighting on those outcomes.** Stable high pressure and persistent northeasterly flow are suppressing daytime heating while advecting cooler maritime air, producing partly cloudy skies and light winds that limit afternoon mixing. Recent observations show daytime highs near 29 °C on September 5–6, with no significant frontal passages or moisture expected to alter the pattern before Monday. Historical early-September climatology for the region supports maxima in the upper 20s °C under similar synoptic setups. Traders appear to be pricing the narrow spread between 28 °C and 29 °C resolution thresholds, with minor probability on 30 °C reflecting residual uncertainty in boundary-layer warming if cloud cover decreases more than anticipated. Updated high-resolution runs and afternoon observations on September 6 will provide the final inputs ahead of market close.
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 September 7?
29°C 50%
28°C 33%
30°C 11%
27°C 7%
22°C or below
<1%
23°C
<1%
24°C
1%
25°C
3%
26°C
2%
27°C
7%
28°C
33%
29°C
50%
30°C
11%
31°C
4%
32°C or higher
1%
29°C 50%
28°C 33%
30°C 11%
27°C 7%
22°C or below
<1%
23°C
<1%
24°C
1%
25°C
3%
26°C
2%
27°C
7%
28°C
33%
29°C
50%
30°C
11%
31°C
4%
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.
Market Opened: Sep 5, 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...**Forecast consensus from regional models points to a maximum of 28–29 °C in Incheon on September 7, aligning with the market’s heaviest weighting on those outcomes.** Stable high pressure and persistent northeasterly flow are suppressing daytime heating while advecting cooler maritime air, producing partly cloudy skies and light winds that limit afternoon mixing. Recent observations show daytime highs near 29 °C on September 5–6, with no significant frontal passages or moisture expected to alter the pattern before Monday. Historical early-September climatology for the region supports maxima in the upper 20s °C under similar synoptic setups. Traders appear to be pricing the narrow spread between 28 °C and 29 °C resolution thresholds, with minor probability on 30 °C reflecting residual uncertainty in boundary-layer warming if cloud cover decreases more than anticipated. Updated high-resolution runs and afternoon observations on September 6 will provide the final inputs ahead of market close.
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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