Recent Met Office guidance and ensemble model runs indicate a chilly overnight minimum near 11–12 °C for London on September 24 under building high pressure, light northeasterly flow, and largely clear to partly cloudy skies that favor radiative cooling after sunset. Dew-point values near 9 °C and minimal cloud cover overnight support efficient heat loss, keeping the lowest temperature close to the seasonal climatological average of about 11 °C. Traders have concentrated probability on the 11 °C and 12 °C bins, reflecting consensus across short-range forecasts while acknowledging residual uncertainty from possible thin high cloud or slight wind shifts that could trim or add a degree. Updated model runs tomorrow morning will refine the exact minimum before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in London on September 24?
12°C 34%
11°C 29%
7°C 28%
14°C 26%
6°C or below
20%
7°C
28%
8°C
23%
9°C
14%
10°C
20%
11°C
29%
12°C
34%
13°C
10%
14°C
26%
15°C
23%
16°C or higher
22%
12°C 34%
11°C 29%
7°C 28%
14°C 26%
6°C or below
20%
7°C
28%
8°C
23%
9°C
14%
10°C
20%
11°C
29%
12°C
34%
13°C
10%
14°C
26%
15°C
23%
16°C or higher
22%
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=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 22, 2026, 12:29 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 lowest 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 guidance and ensemble model runs indicate a chilly overnight minimum near 11–12 °C for London on September 24 under building high pressure, light northeasterly flow, and largely clear to partly cloudy skies that favor radiative cooling after sunset. Dew-point values near 9 °C and minimal cloud cover overnight support efficient heat loss, keeping the lowest temperature close to the seasonal climatological average of about 11 °C. Traders have concentrated probability on the 11 °C and 12 °C bins, reflecting consensus across short-range forecasts while acknowledging residual uncertainty from possible thin high cloud or slight wind shifts that could trim or add a degree. Updated model runs tomorrow morning will refine the exact minimum before 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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