Trader consensus on Polymarket assigns virtually 100% implied probability to a 13°C lowest temperature in Tokyo on April 25, driven by the Japan Meteorological Agency's (JMA) latest forecast issued at 17:00 JST, which aligns with partly cloudy conditions limiting nocturnal radiative cooling. Current observations and hourly data show overnight lows stabilizing near historical late-April norms of 12.2°C, with April 2026 running slightly above average amid mild spring high-pressure influences. AccuWeather models corroborate with lows around 14°C, reinforcing market positioning. Realistic challenges include unexpected clearing skies overnight enabling sharper cooling to 12°C or below, though low cloud cover and urban heat island effects in Tokyo make this improbable; final JMA observation at day's end will resolve.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Tokyo on April 25?
13°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$26,930 Vol.
$26,930 Vol.
8°C or below
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C or higher
No
13°C 100.0%
8°C or below <1%
9°C <1%
10°C <1%
$26,930 Vol.
$26,930 Vol.
8°C or below
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the lowest 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 23, 2026, 12:02 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 lowest 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 virtually 100% implied probability to a 13°C lowest temperature in Tokyo on April 25, driven by the Japan Meteorological Agency's (JMA) latest forecast issued at 17:00 JST, which aligns with partly cloudy conditions limiting nocturnal radiative cooling. Current observations and hourly data show overnight lows stabilizing near historical late-April norms of 12.2°C, with April 2026 running slightly above average amid mild spring high-pressure influences. AccuWeather models corroborate with lows around 14°C, reinforcing market positioning. Realistic challenges include unexpected clearing skies overnight enabling sharper cooling to 12°C or below, though low cloud cover and urban heat island effects in Tokyo make this improbable; final JMA observation at day's end will resolve.
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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