Recent Met Office and global model consensus points to an afternoon maximum of 24–25 °C in London on September 14 under a mild southwesterly flow and variable cloud cover. Persistent high pressure and limited daytime heating keep values from climbing higher, while scattered breaks in cloud could allow brief additional warming. Ensemble spreads remain tight, with most runs clustering between 23–26 °C; small differences in timing of any clearing or boundary-layer mixing explain the near-even market split between 24 °C and 25 °C. Updated official guidance and the next model cycles over the next 48 hours will narrow the range ahead of resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in London on September 14?
24°C 37%
25°C 31%
23°C 15%
26°C 14%
17°C or below
<1%
18°C
<1%
19°C
1%
20°C
2%
21°C
3%
22°C
4%
23°C
15%
24°C
37%
25°C
31%
26°C
14%
27°C or higher
4%
24°C 37%
25°C 31%
23°C 15%
26°C 14%
17°C or below
<1%
18°C
<1%
19°C
1%
20°C
2%
21°C
3%
22°C
4%
23°C
15%
24°C
37%
25°C
31%
26°C
14%
27°C or higher
4%
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.
Market Opened: Sep 12, 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...Recent Met Office and global model consensus points to an afternoon maximum of 24–25 °C in London on September 14 under a mild southwesterly flow and variable cloud cover. Persistent high pressure and limited daytime heating keep values from climbing higher, while scattered breaks in cloud could allow brief additional warming. Ensemble spreads remain tight, with most runs clustering between 23–26 °C; small differences in timing of any clearing or boundary-layer mixing explain the near-even market split between 24 °C and 25 °C. Updated official guidance and the next model cycles over the next 48 hours will narrow the range ahead of resolution.
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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