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.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in London on May 17?
Highest temperature in London on May 17?
16°C 32%
15°C 18%
17°C 16%
14°C 13%
10°C or below
1%
11°C
2%
12°C
4%
13°C
4%
14°C
13%
15°C
18%
16°C
32%
17°C
16%
18°C
8%
19°C
3%
20°C or higher
1%
16°C 32%
15°C 18%
17°C 16%
14°C 13%
10°C or below
1%
11°C
2%
12°C
4%
13°C
4%
14°C
13%
15°C
18%
16°C
32%
17°C
16%
18°C
8%
19°C
3%
20°C or higher
1%
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.
Binuksan ang Market: May 15, 2026, 12:03 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCThe 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.
Resolution 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.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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