Trader consensus on Polymarket, with market-implied odds peaking at 28.5% for 16°C, reflects the UK Met Office's latest forecast of a 17°C maximum in London on May 17 amid persistent cloud cover and light morning showers easing later, capping diurnal heating. Recent days saw highs of 14-16°C under cool northerly airflow and unstable conditions, but a slight shift to westerly winds introduces marginal warming potential. Key differentiators include cloud thickness—thicker overcast favors 15°C outcomes, while breaks could boost to 18-20°C—and shower coverage, per ECMWF and GFS ensemble spreads. Historical mid-May averages hover around 16-17°C at Heathrow, the likely resolution site. Watch 06Z/12Z model updates Saturday for shifts ahead of the event.
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 May 17?
Highest temperature in London on May 17?
16°C 32%
15°C 28%
17°C 26%
14°C 13%
NEW
NEW
May 17, 2026
10°C or below
<1%
11°C
<1%
12°C
1%
13°C
4%
14°C
13%
15°C
28%
16°C
32%
17°C
26%
18°C
3%
19°C
1%
20°C or higher
1%
16°C 32%
15°C 28%
17°C 26%
14°C 13%
NEW
NEW
May 17, 2026
10°C or below
$348 Vol.
<1%
11°C
$311 Vol.
<1%
12°C
$338 Vol.
1%
13°C
$219 Vol.
4%
14°C
$145 Vol.
13%
15°C
$154 Vol.
28%
16°C
$92 Vol.
32%
17°C
$163 Vol.
26%
18°C
$93 Vol.
3%
19°C
$113 Vol.
1%
20°C or higher
$241 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 17 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket, with market-implied odds peaking at 28.5% for 16°C, reflects the UK Met Office's latest forecast of a 17°C maximum in London on May 17 amid persistent cloud cover and light morning showers easing later, capping diurnal heating. Recent days saw highs of 14-16°C under cool northerly airflow and unstable conditions, but a slight shift to westerly winds introduces marginal warming potential. Key differentiators include cloud thickness—thicker overcast favors 15°C outcomes, while breaks could boost to 18-20°C—and shower coverage, per ECMWF and GFS ensemble spreads. Historical mid-May averages hover around 16-17°C at Heathrow, the likely resolution site. Watch 06Z/12Z model updates Saturday for shifts ahead of the event.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 17 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 15, 2026, 12:03 AM ET
Volume
$2,218End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCThis market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 17 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket, with market-implied odds peaking at 28.5% for 16°C, reflects the UK Met Office's latest forecast of a 17°C maximum in London on May 17 amid persistent cloud cover and light morning showers easing later, capping diurnal heating. Recent days saw highs of 14-16°C under cool northerly airflow and unstable conditions, but a slight shift to westerly winds introduces marginal warming potential. Key differentiators include cloud thickness—thicker overcast favors 15°C outcomes, while breaks could boost to 18-20°C—and shower coverage, per ECMWF and GFS ensemble spreads. Historical mid-May averages hover around 16-17°C at Heathrow, the likely resolution site. Watch 06Z/12Z model updates Saturday for shifts ahead of the event.
This market will resolve to the temperature range that contains the highest temperature recorded at the London City Airport Station in degrees Celsius on 17 May '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$2,218End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCTrader consensus on Polymarket, with market-implied odds peaking at 28.5% for 16°C, reflects the UK Met Office's latest forecast of a 17°C maximum in London on May 17 amid persistent cloud cover and light morning showers easing later, capping diurnal heating. Recent days saw highs of 14-16°C under cool northerly airflow and unstable conditions, but a slight shift to westerly winds introduces marginal warming potential. Key differentiators include cloud thickness—thicker overcast favors 15°C outcomes, while breaks could boost to 18-20°C—and shower coverage, per ECMWF and GFS ensemble spreads. Historical mid-May averages hover around 16-17°C at Heathrow, the likely resolution site. Watch 06Z/12Z model updates Saturday for shifts ahead of the event.
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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