Recent numerical weather prediction models, including GFS runs, indicate mild overnight conditions for London on September 7 driven by southwesterly winds and extensive cloud cover that limits radiative cooling. Forecast minimums cluster between 14–17°C, with some guidance showing lows near 16°C under mostly cloudy skies and light winds. This aligns with early September climatology where average minima hover around 11–12°C but current patterns favor warmer anomalies. Trader consensus around 17–18°C reflects model agreement on these thresholds, while lower probabilities for 13°C or below account for potential clearer spells or stronger cooling not yet indicated in official guidance. Updated model runs and Met Office briefings over the next 48 hours will refine these implied probabilities.
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 7?
18°C 47%
15°C 37%
17°C 30%
23°C or higher 21%
13°C or below
18%
14°C
20%
15°C
37%
16°C
13%
17°C
30%
18°C
47%
19°C
19%
20°C
2%
21°C
2%
22°C
2%
23°C or higher
21%
18°C 47%
15°C 37%
17°C 30%
23°C or higher 21%
13°C or below
18%
14°C
20%
15°C
37%
16°C
13%
17°C
30%
18°C
47%
19°C
19%
20°C
2%
21°C
2%
22°C
2%
23°C or higher
21%
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 5, 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 numerical weather prediction models, including GFS runs, indicate mild overnight conditions for London on September 7 driven by southwesterly winds and extensive cloud cover that limits radiative cooling. Forecast minimums cluster between 14–17°C, with some guidance showing lows near 16°C under mostly cloudy skies and light winds. This aligns with early September climatology where average minima hover around 11–12°C but current patterns favor warmer anomalies. Trader consensus around 17–18°C reflects model agreement on these thresholds, while lower probabilities for 13°C or below account for potential clearer spells or stronger cooling not yet indicated in official guidance. Updated model runs and Met Office briefings over the next 48 hours will refine these implied probabilities.
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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