**Cloud cover and a moist trough are the dominant factors capping Tokyo's maximum temperature on September 23, 2026, near 24–25°C according to the latest JMA guidance and ensemble consensus.** Persistent overcast skies, tied to a lingering atmospheric trough and residual moisture from recent heavy rain on September 20–21, are expected to limit solar insolation and keep daytime heating modest despite seasonal norms around 25°C. Official forecasts from JMA and supporting models show highs clustered between 24–27°C under mostly cloudy conditions with light northeasterly flow and scattered showers possible, particularly in the morning. This setup favors the market's leading 24°C (35.5%) and 25°C (30.5%) outcomes, as thicker or more persistent cloud decks would suppress readings toward the lower end while partial breaks could allow brief warming to 25°C. Traders are weighting the balance of model solutions that emphasize limited diurnal range and marine influence over any late clearing. Updated JMA briefings and next model runs on the 22nd will be the key near-term catalysts.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Tokyo on September 23?
24°C 37%
25°C 32%
26°C 15%
23°C 11%
20°C or below
1%
21°C
<1%
22°C
5%
23°C
11%
24°C
37%
25°C
32%
26°C
15%
27°C
8%
28°C
2%
29°C
1%
30°C or higher
<1%
24°C 37%
25°C 32%
26°C 15%
23°C 11%
20°C or below
1%
21°C
<1%
22°C
5%
23°C
11%
24°C
37%
25°C
32%
26°C
15%
27°C
8%
28°C
2%
29°C
1%
30°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=rjtt
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Binuksan ang Market: Sep 21, 2026, 12:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=rjtt
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.weather.gov/wrh/timeseries?site=rjttResolver
0x69c47De9D...**Cloud cover and a moist trough are the dominant factors capping Tokyo's maximum temperature on September 23, 2026, near 24–25°C according to the latest JMA guidance and ensemble consensus.** Persistent overcast skies, tied to a lingering atmospheric trough and residual moisture from recent heavy rain on September 20–21, are expected to limit solar insolation and keep daytime heating modest despite seasonal norms around 25°C. Official forecasts from JMA and supporting models show highs clustered between 24–27°C under mostly cloudy conditions with light northeasterly flow and scattered showers possible, particularly in the morning. This setup favors the market's leading 24°C (35.5%) and 25°C (30.5%) outcomes, as thicker or more persistent cloud decks would suppress readings toward the lower end while partial breaks could allow brief warming to 25°C. Traders are weighting the balance of model solutions that emphasize limited diurnal range and marine influence over any late clearing. Updated JMA briefings and next model runs on the 22nd will be the key near-term catalysts.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update

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