Short-range ensemble forecasts from the Met Office and ECMWF currently anchor trader sentiment on 17–18°C as the most probable minimum temperature in London on June 20, with those outcomes holding near-even implied probabilities. Building high pressure is drawing warmer air northward, raising overnight lows above recent cooler baselines while limiting radiative cooling under partly cloudy skies. Key differentiating variables include precise cloud-cover timing, boundary-layer wind speeds, and London’s urban heat-island effect, all of which can shift the recorded minimum by 1°C between adjacent model runs. Updated guidance expected within 24–48 hours will narrow uncertainty ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in London on June 20?
Lowest temperature in London on June 20?
18°C 46%
17°C 43%
19°C 9%
20°C 8%
NEW
NEW
Jun 20, 2026
14°C or below
1%
15°C
7%
16°C
7%
17°C
43%
18°C
46%
19°C
9%
20°C
8%
21°C
8%
22°C
1%
23°C
3%
24°C or higher
<1%
18°C 46%
17°C 43%
19°C 9%
20°C 8%
NEW
NEW
Jun 20, 2026
14°C or below
$29 Vol.
1%
15°C
$0 Vol.
7%
16°C
$0 Vol.
7%
17°C
$6 Vol.
43%
18°C
$47 Vol.
46%
19°C
$16 Vol.
9%
20°C
$0 Vol.
8%
21°C
$0 Vol.
8%
22°C
$306 Vol.
1%
23°C
$320 Vol.
3%
24°C or higher
$127 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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.Short-range ensemble forecasts from the Met Office and ECMWF currently anchor trader sentiment on 17–18°C as the most probable minimum temperature in London on June 20, with those outcomes holding near-even implied probabilities. Building high pressure is drawing warmer air northward, raising overnight lows above recent cooler baselines while limiting radiative cooling under partly cloudy skies. Key differentiating variables include precise cloud-cover timing, boundary-layer wind speeds, and London’s urban heat-island effect, all of which can shift the recorded minimum by 1°C between adjacent model runs. Updated guidance expected within 24–48 hours will narrow uncertainty ahead of market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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 Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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: Jun 18, 2026, 12:30 AM ET
Volume
$850End Date
Jun 20, 2026Market Opened
Jun 18, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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.Short-range ensemble forecasts from the Met Office and ECMWF currently anchor trader sentiment on 17–18°C as the most probable minimum temperature in London on June 20, with those outcomes holding near-even implied probabilities. Building high pressure is drawing warmer air northward, raising overnight lows above recent cooler baselines while limiting radiative cooling under partly cloudy skies. Key differentiating variables include precise cloud-cover timing, boundary-layer wind speeds, and London’s urban heat-island effect, all of which can shift the recorded minimum by 1°C between adjacent model runs. Updated guidance expected within 24–48 hours will narrow uncertainty ahead of market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 20 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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 Wunderground, specifically the lowest temperature recorded for all times on this day for the London City Airport Station, 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 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
$850End Date
Jun 20, 2026Market Opened
Jun 18, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Short-range ensemble forecasts from the Met Office and ECMWF currently anchor trader sentiment on 17–18°C as the most probable minimum temperature in London on June 20, with those outcomes holding near-even implied probabilities. Building high pressure is drawing warmer air northward, raising overnight lows above recent cooler baselines while limiting radiative cooling under partly cloudy skies. Key differentiating variables include precise cloud-cover timing, boundary-layer wind speeds, and London’s urban heat-island effect, all of which can shift the recorded minimum by 1°C between adjacent model runs. Updated guidance expected within 24–48 hours will narrow uncertainty ahead of market 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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