Recent Met Office and GFS-based forecasts indicate a maximum temperature of 23–24 °C for London on September 13, 2026, under overcast skies with periods of rain and light westerly winds near 4–5 m/s. Persistent cloud cover and precipitation, associated with a broad low-pressure influence, are limiting daytime insolation and preventing stronger warming, keeping values near the seasonal average high of 20.4 °C while above recent cooler analogs. Model consensus across sources shows afternoon peaks clustered in the low-to-mid 20s Celsius, with minimal spread in guidance supporting the market’s concentration on 22–24 °C outcomes. Final overnight model runs and Met Office updates tomorrow morning will provide the last refinements 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 13?
Highest temperature in London on September 13?
23°C 38%
24°C 24%
22°C 22%
25°C 11%
NEW
NEW
Sep 13, 2026
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
2%
21°C
7%
22°C
22%
23°C
38%
24°C
24%
25°C
11%
26°C or higher
1%
23°C 38%
24°C 24%
22°C 22%
25°C 11%
NEW
NEW
Sep 13, 2026
16°C or below
$133 Vol.
<1%
17°C
$373 Vol.
<1%
18°C
$174 Vol.
<1%
19°C
$56 Vol.
1%
20°C
$118 Vol.
2%
21°C
$426 Vol.
7%
22°C
$645 Vol.
22%
23°C
$2,131 Vol.
38%
24°C
$1,083 Vol.
24%
25°C
$491 Vol.
11%
26°C or higher
$462 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 13 Sep '26.
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.Recent Met Office and GFS-based forecasts indicate a maximum temperature of 23–24 °C for London on September 13, 2026, under overcast skies with periods of rain and light westerly winds near 4–5 m/s. Persistent cloud cover and precipitation, associated with a broad low-pressure influence, are limiting daytime insolation and preventing stronger warming, keeping values near the seasonal average high of 20.4 °C while above recent cooler analogs. Model consensus across sources shows afternoon peaks clustered in the low-to-mid 20s Celsius, with minimal spread in guidance supporting the market’s concentration on 22–24 °C outcomes. Final overnight model runs and Met Office updates tomorrow morning will provide the last refinements ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 13 Sep '26.
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.
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 11, 2026, 12:55 AM ET
Volume
$6,092End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 13 Sep '26.
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.Recent Met Office and GFS-based forecasts indicate a maximum temperature of 23–24 °C for London on September 13, 2026, under overcast skies with periods of rain and light westerly winds near 4–5 m/s. Persistent cloud cover and precipitation, associated with a broad low-pressure influence, are limiting daytime insolation and preventing stronger warming, keeping values near the seasonal average high of 20.4 °C while above recent cooler analogs. Model consensus across sources shows afternoon peaks clustered in the low-to-mid 20s Celsius, with minimal spread in guidance supporting the market’s concentration on 22–24 °C outcomes. Final overnight model runs and Met Office updates tomorrow morning will provide the last refinements ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the London City Airport Station in degrees Celsius on 13 Sep '26.
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.
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.
Volume
$6,092End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Recent Met Office and GFS-based forecasts indicate a maximum temperature of 23–24 °C for London on September 13, 2026, under overcast skies with periods of rain and light westerly winds near 4–5 m/s. Persistent cloud cover and precipitation, associated with a broad low-pressure influence, are limiting daytime insolation and preventing stronger warming, keeping values near the seasonal average high of 20.4 °C while above recent cooler analogs. Model consensus across sources shows afternoon peaks clustered in the low-to-mid 20s Celsius, with minimal spread in guidance supporting the market’s concentration on 22–24 °C outcomes. Final overnight model runs and Met Office updates tomorrow morning will provide the last refinements 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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