**Japan Meteorological Agency observations from Tokyo's Haneda Airport station—the market's resolution source—confirm the highest temperature peaked at 17°C midday on April 1, 2026, amid persistent overcast skies and light winds that capped warming potential, yielding near-unanimous trader consensus at 100% implied probability.** This aligns with early-April climatology, where daily maximums average around 17.5°C based on decades of JMA records, following forecasts from GFS and ECMWF models that clustered 17–19°C but were tempered by cloud cover reducing solar insolation. With the day concluding and no late-afternoon spikes observed, uncertainty is minimal; realistic challenges would require rare data revisions from instrument recalibrations or overlooked microclimatic readings in final summaries. Traders await JMA's official daily bulletin for closure.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Tokyo on April 1?
Highest temperature in Tokyo on April 1?
17°C 100.0%
18°C <1%
19°C or higher <1%
$252,665 Vol.
$252,665 Vol.
17°C
100%
18°C
<1%
19°C or higher
<1%
17°C 100.0%
18°C <1%
19°C or higher <1%
$252,665 Vol.
$252,665 Vol.
17°C
100%
18°C
<1%
19°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Tokyo Haneda Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Mar 29, 2026, 2:43 PM ET
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Tokyo Haneda Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...**Japan Meteorological Agency observations from Tokyo's Haneda Airport station—the market's resolution source—confirm the highest temperature peaked at 17°C midday on April 1, 2026, amid persistent overcast skies and light winds that capped warming potential, yielding near-unanimous trader consensus at 100% implied probability.** This aligns with early-April climatology, where daily maximums average around 17.5°C based on decades of JMA records, following forecasts from GFS and ECMWF models that clustered 17–19°C but were tempered by cloud cover reducing solar insolation. With the day concluding and no late-afternoon spikes observed, uncertainty is minimal; realistic challenges would require rare data revisions from instrument recalibrations or overlooked microclimatic readings in final summaries. Traders await JMA's official daily bulletin for closure.
Experimental AI-generated summary referencing Polymarket data · Updated
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