Forecast models from the Met Office and international sources converge on a maximum of 19–20°C for London on September 16 under a moderate westerly flow, partly cloudy skies, and light winds, aligning closely with the market’s leading outcomes at 50.5% for 20°C and 34% for 19°C. This reflects the typical mid-September transition toward autumnal conditions, with the long-term average high near 20°C at Heathrow but recent days showing a cooling trend from earlier warmth amid changeable Atlantic air masses. Short-range guidance indicates limited diurnal heating due to cloud cover and no significant warm advection or clear-sky amplification expected. Traders appear to weigh these consensus runs heavily, though minor model spreads on exact cloud timing could still nudge the peak by 1°C.
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 London on September 16?
20°C 52%
19°C 32%
21°C 15%
17°C 13%
15°C or below
<1%
16°C
4%
17°C
13%
18°C
9%
19°C
32%
20°C
52%
21°C
15%
22°C
10%
23°C
5%
24°C
2%
25°C or higher
<1%
20°C 52%
19°C 32%
21°C 15%
17°C 13%
15°C or below
<1%
16°C
4%
17°C
13%
18°C
9%
19°C
32%
20°C
52%
21°C
15%
22°C
10%
23°C
5%
24°C
2%
25°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=eglc
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 14, 2026, 12:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
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=eglc
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=eglcResolver
0x69c47De9D...Forecast models from the Met Office and international sources converge on a maximum of 19–20°C for London on September 16 under a moderate westerly flow, partly cloudy skies, and light winds, aligning closely with the market’s leading outcomes at 50.5% for 20°C and 34% for 19°C. This reflects the typical mid-September transition toward autumnal conditions, with the long-term average high near 20°C at Heathrow but recent days showing a cooling trend from earlier warmth amid changeable Atlantic air masses. Short-range guidance indicates limited diurnal heating due to cloud cover and no significant warm advection or clear-sky amplification expected. Traders appear to weigh these consensus runs heavily, though minor model spreads on exact cloud timing could still nudge the peak by 1°C.
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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