Current Japan Meteorological Agency forecasts for June 18 in Tokyo indicate a maximum of 24°C amid rain transitioning to cloudy skies, below the seasonal normal of 26.4°C. This aligns with broader early-summer patterns influenced by the ongoing rainy season (tsuyu), which typically suppresses daytime highs through cloud cover and precipitation while moderating humidity buildup. Model consensus and recent observational trends favor a narrow range near 24–25°C, with limited potential for brief spikes under partial clearing. Traders have concentrated implied probability on these outcomes, reflecting real-time assimilation of official guidance and the narrow resolution window for the daily maximum. Updated JMA briefings and afternoon observations remain key near-term catalysts.
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 June 18?
Highest temperature in Tokyo on June 18?
26°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$137,752 Vol.
$137,752 Vol.
Jun 18, 2026
21°C or below
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C
No
28°C
No
29°C
No
30°C
No
31°C or higher
No
26°C 100.0%
21°C or below <1%
22°C <1%
23°C <1%
$137,752 Vol.
$137,752 Vol.
Jun 18, 2026
21°C or below
$5,445 Vol.
No
22°C
$13,488 Vol.
No
23°C
$15,093 Vol.
No
24°C
$17,025 Vol.
No
25°C
$16,376 Vol.
No
26°C
$20,798 Vol.
Yes
27°C
$14,801 Vol.
No
28°C
$15,823 Vol.
No
29°C
$11,334 Vol.
No
30°C
$3,352 Vol.
No
31°C or higher
$4,218 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 18 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.Current Japan Meteorological Agency forecasts for June 18 in Tokyo indicate a maximum of 24°C amid rain transitioning to cloudy skies, below the seasonal normal of 26.4°C. This aligns with broader early-summer patterns influenced by the ongoing rainy season (tsuyu), which typically suppresses daytime highs through cloud cover and precipitation while moderating humidity buildup. Model consensus and recent observational trends favor a narrow range near 24–25°C, with limited potential for brief spikes under partial clearing. Traders have concentrated implied probability on these outcomes, reflecting real-time assimilation of official guidance and the narrow resolution window for the daily maximum. Updated JMA briefings and afternoon observations remain key near-term catalysts.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 18 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.
The resolution source for this market will be information from Wunderground, specifically the highest 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 16, 2026, 12:18 AM ET
Volume
$137,752End Date
Jun 18, 2026Market Opened
Jun 16, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 18 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.Current Japan Meteorological Agency forecasts for June 18 in Tokyo indicate a maximum of 24°C amid rain transitioning to cloudy skies, below the seasonal normal of 26.4°C. This aligns with broader early-summer patterns influenced by the ongoing rainy season (tsuyu), which typically suppresses daytime highs through cloud cover and precipitation while moderating humidity buildup. Model consensus and recent observational trends favor a narrow range near 24–25°C, with limited potential for brief spikes under partial clearing. Traders have concentrated implied probability on these outcomes, reflecting real-time assimilation of official guidance and the narrow resolution window for the daily maximum. Updated JMA briefings and afternoon observations remain key near-term catalysts.
This market will resolve to the temperature range that contains the highest temperature recorded at the Tokyo Haneda Airport Station in degrees Celsius on 18 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest 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.
The resolution source for this market will be information from Wunderground, specifically the highest 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.
Volume
$137,752End Date
Jun 18, 2026Market Opened
Jun 16, 2026, 12:18 AM ETResolution Source
https://www.wunderground.com/history/daily/jp/tokyo/RJTTResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Current Japan Meteorological Agency forecasts for June 18 in Tokyo indicate a maximum of 24°C amid rain transitioning to cloudy skies, below the seasonal normal of 26.4°C. This aligns with broader early-summer patterns influenced by the ongoing rainy season (tsuyu), which typically suppresses daytime highs through cloud cover and precipitation while moderating humidity buildup. Model consensus and recent observational trends favor a narrow range near 24–25°C, with limited potential for brief spikes under partial clearing. Traders have concentrated implied probability on these outcomes, reflecting real-time assimilation of official guidance and the narrow resolution window for the daily maximum. Updated JMA briefings and afternoon observations remain key near-term catalysts.
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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