Recent Met Office and European model guidance points to a minimum temperature near 17–19°C in London on June 28 amid a post-heatwave cooling trend, with high pressure giving way to increased cloud cover and lighter winds that limit overnight radiative cooling. Trader consensus clustering on 18°C (45.5%) and 19°C (36%) reflects this narrow range, while the 15°C-or-below option at 19.5% accounts for possible clearer skies enhancing heat loss. Key differentiators include forecast variability in low-level humidity and boundary-layer mixing, which can shift the minimum by 1–2°C, alongside the typical 1–2°C urban heat-island effect in central London versus airport sites used for official readings. Updated model runs over the next 24–48 hours will likely tighten these probabilities ahead of 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 28?
Lowest temperature in London on June 28?
19°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$43,971 Vol.
$43,971 Vol.
Jun 28, 2026
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C or higher
No
19°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$43,971 Vol.
$43,971 Vol.
Jun 28, 2026
15°C or below
$3,953 Vol.
No
16°C
$1,686 Vol.
No
17°C
$1,630 Vol.
No
18°C
$4,535 Vol.
No
19°C
$5,941 Vol.
Yes
20°C
$10,308 Vol.
No
21°C
$7,237 Vol.
No
22°C
$1,658 Vol.
No
23°C
$1,274 Vol.
No
24°C
$1,219 Vol.
No
25°C or higher
$4,530 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 28 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.Recent Met Office and European model guidance points to a minimum temperature near 17–19°C in London on June 28 amid a post-heatwave cooling trend, with high pressure giving way to increased cloud cover and lighter winds that limit overnight radiative cooling. Trader consensus clustering on 18°C (45.5%) and 19°C (36%) reflects this narrow range, while the 15°C-or-below option at 19.5% accounts for possible clearer skies enhancing heat loss. Key differentiators include forecast variability in low-level humidity and boundary-layer mixing, which can shift the minimum by 1–2°C, alongside the typical 1–2°C urban heat-island effect in central London versus airport sites used for official readings. Updated model runs over the next 24–48 hours will likely tighten these probabilities ahead of 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 28 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 26, 2026, 12:30 AM ET
Volume
$43,971End Date
Jun 28, 2026Market Opened
Jun 26, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the lowest temperature recorded at the London City Airport Station in degrees Celsius on 28 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.Recent Met Office and European model guidance points to a minimum temperature near 17–19°C in London on June 28 amid a post-heatwave cooling trend, with high pressure giving way to increased cloud cover and lighter winds that limit overnight radiative cooling. Trader consensus clustering on 18°C (45.5%) and 19°C (36%) reflects this narrow range, while the 15°C-or-below option at 19.5% accounts for possible clearer skies enhancing heat loss. Key differentiators include forecast variability in low-level humidity and boundary-layer mixing, which can shift the minimum by 1–2°C, alongside the typical 1–2°C urban heat-island effect in central London versus airport sites used for official readings. Updated model runs over the next 24–48 hours will likely tighten these probabilities ahead of 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 28 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
$43,971End Date
Jun 28, 2026Market Opened
Jun 26, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent Met Office and European model guidance points to a minimum temperature near 17–19°C in London on June 28 amid a post-heatwave cooling trend, with high pressure giving way to increased cloud cover and lighter winds that limit overnight radiative cooling. Trader consensus clustering on 18°C (45.5%) and 19°C (36%) reflects this narrow range, while the 15°C-or-below option at 19.5% accounts for possible clearer skies enhancing heat loss. Key differentiators include forecast variability in low-level humidity and boundary-layer mixing, which can shift the minimum by 1–2°C, alongside the typical 1–2°C urban heat-island effect in central London versus airport sites used for official readings. Updated model runs over the next 24–48 hours will likely tighten these probabilities ahead of 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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