**Persistent heavy rain and thunderstorms are anchoring Tokyo's overnight low near 22°C on September 21.** Official forecasts from the Japan Meteorological Agency and multiple models show a minimum around 21–22°C (roughly 70–72°F), with daytime highs near 25–26°C amid 100% precipitation chances, strong northeasterly winds, and near-saturated humidity levels above 95%. Cloud cover and ongoing moisture limit nocturnal radiative cooling, a key factor keeping temperatures from falling to the 20°C or lower levels that would otherwise be possible in clearer conditions. Recent model runs and current observations of elevated dew points and pressure gradients reinforce this outcome, aligning with the market's heavy weighting toward 22°C (79.5%) while assigning only modest probability to 21°C. Updated guidance through the night will be the main near-term driver of any final shifts.
基於Polymarket數據的AI實驗性摘要。這不是交易建議,也不影響該市場的結算方式。 · 更新於9月21日東京的最低溫度?
22°C 79%
21°C 23%
20°C 5%
19°C 3%
17°C或以下
<1%
18°C
1%
19°C
3%
20°C
5%
21°C
18%
22°C
75%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C或以上
<1%
22°C 79%
21°C 23%
20°C 5%
19°C 3%
17°C或以下
<1%
18°C
1%
19°C
3%
20°C
5%
21°C
18%
22°C
75%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C或以上
<1%
The resolution source for this market will be information from NOAA, specifically the lowest 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.
市場開放時間: Sep 19, 2026, 12:30 AM ET
The resolution source for this market will be information from NOAA, specifically the lowest 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.
**Persistent heavy rain and thunderstorms are anchoring Tokyo's overnight low near 22°C on September 21.** Official forecasts from the Japan Meteorological Agency and multiple models show a minimum around 21–22°C (roughly 70–72°F), with daytime highs near 25–26°C amid 100% precipitation chances, strong northeasterly winds, and near-saturated humidity levels above 95%. Cloud cover and ongoing moisture limit nocturnal radiative cooling, a key factor keeping temperatures from falling to the 20°C or lower levels that would otherwise be possible in clearer conditions. Recent model runs and current observations of elevated dew points and pressure gradients reinforce this outcome, aligning with the market's heavy weighting toward 22°C (79.5%) while assigning only modest probability to 21°C. Updated guidance through the night will be the main near-term driver of any final shifts.
基於Polymarket數據的AI實驗性摘要。這不是交易建議,也不影響該市場的結算方式。 · 更新於
警惕外部連結哦。
警惕外部連結哦。
Frequently Asked Questions