Official Met Office forecasts for London on September 16, 2026, establish a minimum nighttime temperature of 14°C under cloudy, breezy conditions with limited radiative cooling, aligning with the market's 96% implied probability for that outcome. This reflects model consensus from agencies tracking Atlantic influences and regional pressure patterns that moderate overnight lows above the 1991–2020 climatological average of 11.6°C. Recent observations confirm daytime highs near 20°C with stable dew points supporting the projection. A shift toward clearer skies or an unforecast cold advection could lower readings toward 12–13°C, though current data and short-range model runs indicate low likelihood before midnight 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 16?
14°C 96%
13°C 2%
12°C <1%
10°C <1%
$6,240 Vol.
$6,240 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
1%
13°C
2%
14°C
96%
15°C
<1%
16°C
<1%
17°C
<1%
18°C or higher
<1%
14°C 96%
13°C 2%
12°C <1%
10°C <1%
$6,240 Vol.
$6,240 Vol.
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
1%
13°C
2%
14°C
96%
15°C
<1%
16°C
<1%
17°C
<1%
18°C or higher
<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=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 14, 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...Official Met Office forecasts for London on September 16, 2026, establish a minimum nighttime temperature of 14°C under cloudy, breezy conditions with limited radiative cooling, aligning with the market's 96% implied probability for that outcome. This reflects model consensus from agencies tracking Atlantic influences and regional pressure patterns that moderate overnight lows above the 1991–2020 climatological average of 11.6°C. Recent observations confirm daytime highs near 20°C with stable dew points supporting the projection. A shift toward clearer skies or an unforecast cold advection could lower readings toward 12–13°C, though current data and short-range model runs indicate low likelihood before midnight 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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