Official forecasts from the Korea Meteorological Administration and ensemble models indicate Seoul's overnight minimum on June 17 will register exactly 20°C under mostly cloudy skies with light winds and moderate humidity, aligning with typical early-summer nocturnal cooling rates after daytime highs near 32–33°C. This narrow consensus, backed by recent observational trends and stable atmospheric conditions, underpins the market's near-certain implied probability for the 20°C outcome. Only an unforecasted cold-air intrusion or localized measurement anomaly at official stations could alter resolution, though current guidance shows low likelihood of deviation.
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 on June 17?
20°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$25,699 Vol.
$25,699 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
20°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$25,699 Vol.
$25,699 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Incheon Intl Airport Station, available here: https://www.wunderground.com/history/daily/kr/incheon/RKSI.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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: Jun 15, 2026, 12:31 AM ET
Resolution Source
https://www.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Incheon Intl Airport Station, available here: https://www.wunderground.com/history/daily/kr/incheon/RKSI.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.wunderground.com/history/daily/kr/incheon/RKSIResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official forecasts from the Korea Meteorological Administration and ensemble models indicate Seoul's overnight minimum on June 17 will register exactly 20°C under mostly cloudy skies with light winds and moderate humidity, aligning with typical early-summer nocturnal cooling rates after daytime highs near 32–33°C. This narrow consensus, backed by recent observational trends and stable atmospheric conditions, underpins the market's near-certain implied probability for the 20°C outcome. Only an unforecasted cold-air intrusion or localized measurement anomaly at official stations could alter resolution, though current guidance shows low likelihood of deviation.
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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