The market's near-certain 100% consensus on 23°C as Tokyo's highest temperature on June 4 stems from the Japan Meteorological Agency's latest official forecast and supporting numerical weather prediction models, including ECMWF and GFS ensembles, which align on a mild early-June maximum under stable southerly flow and near-normal seasonal conditions. This positions the outcome well within the typical 21–26°C range for the period, with no significant warming signals from current atmospheric patterns. Official observations from the Otemachi station will finalize resolution. A late-day shift in advection or unmodeled local heating could theoretically alter the reading, though current data show limited scope for such deviation before the daily 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 Tokyo on June 4?
23°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$113,124 Vol.
$113,124 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
24°C
No
25°C
No
26°C
No
27°C or higher
No
23°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$113,124 Vol.
$113,124 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
Yes
24°C
No
25°C
No
26°C
No
27°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest 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 2, 2026, 12:26 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 highest 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 market's near-certain 100% consensus on 23°C as Tokyo's highest temperature on June 4 stems from the Japan Meteorological Agency's latest official forecast and supporting numerical weather prediction models, including ECMWF and GFS ensembles, which align on a mild early-June maximum under stable southerly flow and near-normal seasonal conditions. This positions the outcome well within the typical 21–26°C range for the period, with no significant warming signals from current atmospheric patterns. Official observations from the Otemachi station will finalize resolution. A late-day shift in advection or unmodeled local heating could theoretically alter the reading, though current data show limited scope for such deviation before the daily 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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