Official Met Office forecasts for London on September 10, 2026, project a daytime maximum of 21°C under mostly cloudy skies with southwest winds, establishing this as the market leader at 73.5% implied probability. Multiple model runs align on peak readings near this threshold during afternoon hours, supported by stable high pressure and mild Atlantic air masses typical for early September. Nearby outcomes at 20°C and 22°C hold secondary shares due to minor uncertainties in cloud cover and timing of any showers, while extremes remain negligible. Updated guidance today reinforces the central scenario ahead of evening 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 10?
Highest temperature in London on September 10?
21°C 71%
20°C 18%
22°C 14%
19°C <1%
$35,960 Vol.
$35,960 Vol.
Sep 10, 2026
16°C or below
<1%
17°C
<1%
18°C
<1%
19°C
<1%
20°C
18%
21°C
71%
22°C
14%
23°C
<1%
24°C
<1%
25°C
<1%
26°C or higher
<1%
21°C 71%
20°C 18%
22°C 14%
19°C <1%
$35,960 Vol.
$35,960 Vol.
Sep 10, 2026
16°C or below
$684 Vol.
<1%
17°C
$631 Vol.
<1%
18°C
$1,423 Vol.
<1%
19°C
$5,804 Vol.
<1%
20°C
$7,418 Vol.
18%
21°C
$9,512 Vol.
71%
22°C
$4,771 Vol.
14%
23°C
$3,365 Vol.
<1%
24°C
$1,645 Vol.
<1%
25°C
$816 Vol.
<1%
26°C or higher
$569 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 10 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.Official Met Office forecasts for London on September 10, 2026, project a daytime maximum of 21°C under mostly cloudy skies with southwest winds, establishing this as the market leader at 73.5% implied probability. Multiple model runs align on peak readings near this threshold during afternoon hours, supported by stable high pressure and mild Atlantic air masses typical for early September. Nearby outcomes at 20°C and 22°C hold secondary shares due to minor uncertainties in cloud cover and timing of any showers, while extremes remain negligible. Updated guidance today reinforces the central scenario ahead of evening 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 10 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 8, 2026, 12:55 AM ET
Volume
$35,960End Date
Sep 10, 2026Market Opened
Sep 8, 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 10 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.Official Met Office forecasts for London on September 10, 2026, project a daytime maximum of 21°C under mostly cloudy skies with southwest winds, establishing this as the market leader at 73.5% implied probability. Multiple model runs align on peak readings near this threshold during afternoon hours, supported by stable high pressure and mild Atlantic air masses typical for early September. Nearby outcomes at 20°C and 22°C hold secondary shares due to minor uncertainties in cloud cover and timing of any showers, while extremes remain negligible. Updated guidance today reinforces the central scenario ahead of evening 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 10 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
$35,960End Date
Sep 10, 2026Market Opened
Sep 8, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Official Met Office forecasts for London on September 10, 2026, project a daytime maximum of 21°C under mostly cloudy skies with southwest winds, establishing this as the market leader at 73.5% implied probability. Multiple model runs align on peak readings near this threshold during afternoon hours, supported by stable high pressure and mild Atlantic air masses typical for early September. Nearby outcomes at 20°C and 22°C hold secondary shares due to minor uncertainties in cloud cover and timing of any showers, while extremes remain negligible. Updated guidance today reinforces the central scenario ahead of evening 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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