Trader consensus on Polymarket heavily favors a Tokyo high of 20°C (46.5%) or 21°C (36.0%) today, driven by the Japan Meteorological Agency's (JMA) latest forecast issued April 14 evening, projecting a daytime maximum of 21°C amid mostly cloudy skies with temporary rain chances rising to 50% overnight. This aligns with mid-April climatology, where daily normal highs average 19.8°C, but spring warming under weak high-pressure influence supports mild conditions; yesterday's patchy rain limited the high to around 20°C. Cloud cover and precipitation risk introduce uncertainty, potentially capping peaks at 20°C despite model projections, with intraday observations from JMA stations key to final resolution by midnight JST.
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 15?
Highest temperature in Tokyo on April 15?
20°C 38%
21°C 35%
19°C 8.0%
22°C 6.9%
$106,500 Vol.
$106,500 Vol.
18°C
<1%
19°C
8%
20°C
38%
21°C
35%
22°C
7%
23°C
2%
24°C or higher
1%
20°C 38%
21°C 35%
19°C 8.0%
22°C 6.9%
$106,500 Vol.
$106,500 Vol.
18°C
<1%
19°C
8%
20°C
38%
21°C
35%
22°C
7%
23°C
2%
24°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: Apr 13, 2026, 12:06 AM 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...Trader consensus on Polymarket heavily favors a Tokyo high of 20°C (46.5%) or 21°C (36.0%) today, driven by the Japan Meteorological Agency's (JMA) latest forecast issued April 14 evening, projecting a daytime maximum of 21°C amid mostly cloudy skies with temporary rain chances rising to 50% overnight. This aligns with mid-April climatology, where daily normal highs average 19.8°C, but spring warming under weak high-pressure influence supports mild conditions; yesterday's patchy rain limited the high to around 20°C. Cloud cover and precipitation risk introduce uncertainty, potentially capping peaks at 20°C despite model projections, with intraday observations from JMA stations key to final resolution by midnight JST.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions