Recent meteorological forecasts from regional models indicate a highest temperature in Tokyo on May 22 most likely between 16°C and 18°C, aligning with the market's concentration of implied probability in that narrow band. Cooler northwesterly flow behind a passing front has suppressed daytime warming compared with seasonal norms, where May averages reach about 23°C, while cloud cover and light precipitation expected overnight further limit radiative heating. Ensemble guidance shows modest spread due to variable boundary-layer moisture, keeping the odds for 17°C highest while assigning lower weight to outliers above 19°C or below 15°C. Updated runs from the Japan Meteorological Agency will refine these projections ahead of the day's peak.
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 May 22?
17°C 37%
18°C 24%
16°C 22%
19°C 10%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
2%
15°C
6%
16°C
22%
17°C
37%
18°C
24%
19°C
10%
20°C
4%
21°C or higher
1%
17°C 37%
18°C 24%
16°C 22%
19°C 10%
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
2%
15°C
6%
16°C
22%
17°C
37%
18°C
24%
19°C
10%
20°C
4%
21°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: May 20, 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...Recent meteorological forecasts from regional models indicate a highest temperature in Tokyo on May 22 most likely between 16°C and 18°C, aligning with the market's concentration of implied probability in that narrow band. Cooler northwesterly flow behind a passing front has suppressed daytime warming compared with seasonal norms, where May averages reach about 23°C, while cloud cover and light precipitation expected overnight further limit radiative heating. Ensemble guidance shows modest spread due to variable boundary-layer moisture, keeping the odds for 17°C highest while assigning lower weight to outliers above 19°C or below 15°C. Updated runs from the Japan Meteorological Agency will refine these projections ahead of the day's peak.
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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