Current Met Office and ensemble forecasts for London indicate overnight radiative cooling under mostly clear to partly cloudy skies with light southwest winds, supporting a minimum temperature in the 12–15°C range. Trader consensus centers on 14°C as the most probable outcome because models show a mild Atlantic air mass limiting deeper cooling, while modest uncertainty in cloud cover and wind speed creates a close contest with 13°C and 15°C. Historical September 12 lows average near 11.8°C at Heathrow, but recent high-pressure influence has kept readings several degrees above that baseline. The exact minimum will hinge on final observations of dew-point depression and boundary-layer mixing before dawn.
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 12?
Lowest temperature in London on September 12?
14°C 38%
13°C 34%
15°C 14%
12°C 6%
NEW
NEW
Sep 12, 2026
8°C or below
<1%
9°C
<1%
10°C
<1%
11°C
<1%
12°C
6%
13°C
34%
14°C
43%
15°C
26%
16°C
2%
17°C
<1%
18°C or higher
<1%
14°C 38%
13°C 34%
15°C 14%
12°C 6%
NEW
NEW
Sep 12, 2026
8°C or below
$55 Vol.
<1%
9°C
$55 Vol.
<1%
10°C
$85 Vol.
<1%
11°C
$68 Vol.
<1%
12°C
$421 Vol.
6%
13°C
$1,403 Vol.
34%
14°C
$3,634 Vol.
43%
15°C
$601 Vol.
26%
16°C
$54 Vol.
2%
17°C
$48 Vol.
<1%
18°C or higher
$971 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 12 Sep '26.
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.Current Met Office and ensemble forecasts for London indicate overnight radiative cooling under mostly clear to partly cloudy skies with light southwest winds, supporting a minimum temperature in the 12–15°C range. Trader consensus centers on 14°C as the most probable outcome because models show a mild Atlantic air mass limiting deeper cooling, while modest uncertainty in cloud cover and wind speed creates a close contest with 13°C and 15°C. Historical September 12 lows average near 11.8°C at Heathrow, but recent high-pressure influence has kept readings several degrees above that baseline. The exact minimum will hinge on final observations of dew-point depression and boundary-layer mixing before dawn.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 12 Sep '26.
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.
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 10, 2026, 12:29 AM ET
Volume
$7,394End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 12 Sep '26.
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.Current Met Office and ensemble forecasts for London indicate overnight radiative cooling under mostly clear to partly cloudy skies with light southwest winds, supporting a minimum temperature in the 12–15°C range. Trader consensus centers on 14°C as the most probable outcome because models show a mild Atlantic air mass limiting deeper cooling, while modest uncertainty in cloud cover and wind speed creates a close contest with 13°C and 15°C. Historical September 12 lows average near 11.8°C at Heathrow, but recent high-pressure influence has kept readings several degrees above that baseline. The exact minimum will hinge on final observations of dew-point depression and boundary-layer mixing before dawn.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 12 Sep '26.
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.
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.
Volume
$7,394End Date
Sep 12, 2026Market Opened
Sep 10, 2026, 12:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Current Met Office and ensemble forecasts for London indicate overnight radiative cooling under mostly clear to partly cloudy skies with light southwest winds, supporting a minimum temperature in the 12–15°C range. Trader consensus centers on 14°C as the most probable outcome because models show a mild Atlantic air mass limiting deeper cooling, while modest uncertainty in cloud cover and wind speed creates a close contest with 13°C and 15°C. Historical September 12 lows average near 11.8°C at Heathrow, but recent high-pressure influence has kept readings several degrees above that baseline. The exact minimum will hinge on final observations of dew-point depression and boundary-layer mixing before dawn.
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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