The Japan Meteorological Agency forecast for Tokyo projects a minimum temperature of 18°C on June 11, matching the daily climatological normal of 18.2–18.3°C under stable, mostly cloudy conditions typical of early June in the Kanto region. This alignment, reinforced by recent model consensus and limited overnight variability, underpins the market’s near-certain 100% implied probability for the 18°C outcome. Historical June lows in Tokyo show tight clustering around this baseline absent major synoptic shifts. Only an unexpected frontal passage, revised observational data from the official station, or localized urban heat-island effects could realistically produce a one-degree deviation before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Tokyo on June 11?
18°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$23,297 Vol.
$23,297 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C or higher
No
18°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$23,297 Vol.
$23,297 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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 9, 2026, 12:32 AM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
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 Tokyo Haneda Airport Station, available here: https://www.wunderground.com/history/daily/jp/tokyo/RJTT.
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/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The Japan Meteorological Agency forecast for Tokyo projects a minimum temperature of 18°C on June 11, matching the daily climatological normal of 18.2–18.3°C under stable, mostly cloudy conditions typical of early June in the Kanto region. This alignment, reinforced by recent model consensus and limited overnight variability, underpins the market’s near-certain 100% implied probability for the 18°C outcome. Historical June lows in Tokyo show tight clustering around this baseline absent major synoptic shifts. Only an unexpected frontal passage, revised observational data from the official station, or localized urban heat-island effects could realistically produce a one-degree deviation before resolution.
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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