Trader consensus on Polymarket assigns a near-certain implied probability to a highest temperature of 20°C in Tokyo on April 10, 2026, backed by Japan Meteorological Agency (JMA) observations confirming a midday peak of exactly 20°C at official stations like Haneda Airport. Persistent showers and cloudy skies throughout the day suppressed solar heating, aligning precisely with JMA's latest numerical forecasts issued early that morning projecting a 20°C maximum under these conditions. Hourly Automated Meteorological Data Acquisition System (AMEDAS) readings showed no exceedance, consistent with mid-April climatological norms averaging 18–20°C amid a weak low-pressure system. Realistic challenges would require an anomalous late-evening data revision on resolution source Weather Underground—unlikely given synchronized agency data and diminishing daylight. Final JMA daily summary expected shortly.
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 April 10?
Highest temperature in Tokyo on April 10?
20°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$227,289 Vol.
$227,289 Vol.
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C or higher
No
20°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$227,289 Vol.
$227,289 Vol.
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°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 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: Apr 6, 2026, 12:08 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 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...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket assigns a near-certain implied probability to a highest temperature of 20°C in Tokyo on April 10, 2026, backed by Japan Meteorological Agency (JMA) observations confirming a midday peak of exactly 20°C at official stations like Haneda Airport. Persistent showers and cloudy skies throughout the day suppressed solar heating, aligning precisely with JMA's latest numerical forecasts issued early that morning projecting a 20°C maximum under these conditions. Hourly Automated Meteorological Data Acquisition System (AMEDAS) readings showed no exceedance, consistent with mid-April climatological norms averaging 18–20°C amid a weak low-pressure system. Realistic challenges would require an anomalous late-evening data revision on resolution source Weather Underground—unlikely given synchronized agency data and diminishing daylight. Final JMA daily summary expected shortly.
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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