Official forecasts from the Japan Meteorological Agency place Tokyo's overnight minimum near 19°C on June 13, aligning with mid-June climatological normals of roughly 18.6°C and recent model guidance showing calm conditions with limited overnight cooling. This consensus, reinforced by consistent regional observations and typical early-summer humidity patterns that moderate temperature drops, underpins the market's 100% implied probability for a 19°C low. Uncertainties remain low but could arise from localized station variations, an unexpected late-evening frontal passage, or minor adjustments in final verified readings from the primary Tokyo observatory.
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 June 13?
19°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$16,764 Vol.
$16,764 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C or higher
No
19°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$16,764 Vol.
$16,764 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°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 for the Tokyo Haneda Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jun 11, 2026, 12:32 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 for the Tokyo Haneda Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official forecasts from the Japan Meteorological Agency place Tokyo's overnight minimum near 19°C on June 13, aligning with mid-June climatological normals of roughly 18.6°C and recent model guidance showing calm conditions with limited overnight cooling. This consensus, reinforced by consistent regional observations and typical early-summer humidity patterns that moderate temperature drops, underpins the market's 100% implied probability for a 19°C low. Uncertainties remain low but could arise from localized station variations, an unexpected late-evening frontal passage, or minor adjustments in final verified readings from the primary Tokyo observatory.
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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