**Forecast consensus from Met Office guidance and multiple models indicates a mild September day in London, with daytime maxima most likely peaking between 21–22°C under southwesterly flow and extensive cloud cover.** Prevailing conditions show light-to-moderate SW winds, high pressure near 1020 hPa, and limited solar heating from persistent cloud, keeping temperatures close to or slightly above the early-September climatological average of roughly 19–20°C. Model outputs vary modestly between 20–24°C depending on exact cloud timing and any brief showers, producing the tight market clustering around 21–23°C. Updated short-range runs continue to favor the lower-to-middle end of that range, with uncertainty driven by how quickly any breaks in cloud allow brief warming.
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 2?
Highest temperature in London on September 2?
22°C 34%
21°C 27%
23°C 19%
20°C 14%
NEW
NEW
Sep 2, 2026
17°C or below
<1%
18°C
<1%
19°C
3%
20°C
14%
21°C
27%
22°C
34%
23°C
19%
24°C
6%
25°C
1%
26°C
<1%
27°C or higher
<1%
22°C 34%
21°C 27%
23°C 19%
20°C 14%
NEW
NEW
Sep 2, 2026
17°C or below
$1,257 Vol.
<1%
18°C
$414 Vol.
<1%
19°C
$85 Vol.
3%
20°C
$509 Vol.
14%
21°C
$749 Vol.
27%
22°C
$823 Vol.
34%
23°C
$856 Vol.
19%
24°C
$236 Vol.
6%
25°C
$560 Vol.
1%
26°C
$256 Vol.
<1%
27°C or higher
$199 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 2 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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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.**Forecast consensus from Met Office guidance and multiple models indicates a mild September day in London, with daytime maxima most likely peaking between 21–22°C under southwesterly flow and extensive cloud cover.**
Prevailing conditions show light-to-moderate SW winds, high pressure near 1020 hPa, and limited solar heating from persistent cloud, keeping temperatures close to or slightly above the early-September climatological average of roughly 19–20°C. Model outputs vary modestly between 20–24°C depending on exact cloud timing and any brief showers, producing the tight market clustering around 21–23°C. Updated short-range runs continue to favor the lower-to-middle end of that range, with uncertainty driven by how quickly any breaks in cloud allow brief warming.
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 2 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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 31, 2026, 12:55 AM ET
Volume
$5,878End Date
Sep 2, 2026Market Opened
Aug 31, 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 2 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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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.**Forecast consensus from Met Office guidance and multiple models indicates a mild September day in London, with daytime maxima most likely peaking between 21–22°C under southwesterly flow and extensive cloud cover.**
Prevailing conditions show light-to-moderate SW winds, high pressure near 1020 hPa, and limited solar heating from persistent cloud, keeping temperatures close to or slightly above the early-September climatological average of roughly 19–20°C. Model outputs vary modestly between 20–24°C depending on exact cloud timing and any brief showers, producing the tight market clustering around 21–23°C. Updated short-range runs continue to favor the lower-to-middle end of that range, with uncertainty driven by how quickly any breaks in cloud allow brief warming.
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 2 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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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
$5,878End Date
Sep 2, 2026Market Opened
Aug 31, 2026, 12:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...**Forecast consensus from Met Office guidance and multiple models indicates a mild September day in London, with daytime maxima most likely peaking between 21–22°C under southwesterly flow and extensive cloud cover.** Prevailing conditions show light-to-moderate SW winds, high pressure near 1020 hPa, and limited solar heating from persistent cloud, keeping temperatures close to or slightly above the early-September climatological average of roughly 19–20°C. Model outputs vary modestly between 20–24°C depending on exact cloud timing and any brief showers, producing the tight market clustering around 21–23°C. Updated short-range runs continue to favor the lower-to-middle end of that range, with uncertainty driven by how quickly any breaks in cloud allow brief warming.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions