Recent forecasts from the Japan Meteorological Agency and ensemble models have converged on a daily maximum near 28°C for Tokyo on June 17, driven by stable subtropical high pressure and modest warm advection with limited boundary-layer mixing. This aligns with mid-June climatology for the region, where highs typically range 25–28°C absent strong frontal systems or enhanced sea-breeze cooling. The market's near-certain positioning on 28°C reflects this tight model consensus and ongoing observations confirming the threshold. Only a late-day increase in cloud cover or stronger onshore flow could realistically cap the high below this level before official verification.
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 17?
Highest temperature in Tokyo on June 17?
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$108,220 Vol.
$108,220 Vol.
Jun 17, 2026
20°C or below
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
Yes
29°C
No
30°C or higher
No
28°C 100.0%
20°C or below <1%
21°C <1%
22°C <1%
$108,220 Vol.
$108,220 Vol.
Jun 17, 2026
20°C or below
$4,243 Vol.
No
21°C
$2,150 Vol.
No
22°C
$2,451 Vol.
No
23°C
$5,292 Vol.
No
24°C
$6,708 Vol.
No
25°C
$15,307 Vol.
No
26°C
$16,972 Vol.
No
27°C
$19,428 Vol.
No
28°C
$14,931 Vol.
Yes
29°C
$11,956 Vol.
No
30°C or higher
$8,784 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 17 Jun '26.
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.Recent forecasts from the Japan Meteorological Agency and ensemble models have converged on a daily maximum near 28°C for Tokyo on June 17, driven by stable subtropical high pressure and modest warm advection with limited boundary-layer mixing. This aligns with mid-June climatology for the region, where highs typically range 25–28°C absent strong frontal systems or enhanced sea-breeze cooling. The market's near-certain positioning on 28°C reflects this tight model consensus and ongoing observations confirming the threshold. Only a late-day increase in cloud cover or stronger onshore flow could realistically cap the high below this level before official verification.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 17 Jun '26.
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.
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 15, 2026, 12:04 AM ET
Volume
$108,220End Date
Jun 17, 2026Market Opened
Jun 15, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 17 Jun '26.
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.Recent forecasts from the Japan Meteorological Agency and ensemble models have converged on a daily maximum near 28°C for Tokyo on June 17, driven by stable subtropical high pressure and modest warm advection with limited boundary-layer mixing. This aligns with mid-June climatology for the region, where highs typically range 25–28°C absent strong frontal systems or enhanced sea-breeze cooling. The market's near-certain positioning on 28°C reflects this tight model consensus and ongoing observations confirming the threshold. Only a late-day increase in cloud cover or stronger onshore flow could realistically cap the high below this level before official verification.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 17 Jun '26.
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.
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.
Volume
$108,220End Date
Jun 17, 2026Market Opened
Jun 15, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent forecasts from the Japan Meteorological Agency and ensemble models have converged on a daily maximum near 28°C for Tokyo on June 17, driven by stable subtropical high pressure and modest warm advection with limited boundary-layer mixing. This aligns with mid-June climatology for the region, where highs typically range 25–28°C absent strong frontal systems or enhanced sea-breeze cooling. The market's near-certain positioning on 28°C reflects this tight model consensus and ongoing observations confirming the threshold. Only a late-day increase in cloud cover or stronger onshore flow could realistically cap the high below this level before official verification.
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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