Official Met Office forecasts for London on August 30 indicate a maximum of 22°C amid mostly cloudy skies, scattered showers, and moderate southwesterly winds, establishing the primary driver behind the 47.5% implied probability for 22°C and 35.5% for 23°C. Ensemble models show limited warming potential from Atlantic air masses and persistent cloud cover suppressing peaks, consistent with late-August climatology where highs typically range 20–23°C. Trader consensus reflects high confidence in this narrow band, with lower odds for 24°C or above tied to any unexpected clearing or 21°C or below linked to heavier rainfall. Updated guidance through the evening of August 29 will refine 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. · UpdatedHighest temperature in London on August 30?
22°C 45%
23°C 36%
21°C 10%
24°C 5%
$16,282 Vol.
$16,282 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
2%
21°C
10%
22°C
45%
23°C
36%
24°C
5%
25°C
2%
26°C
<1%
27°C or higher
<1%
22°C 45%
23°C 36%
21°C 10%
24°C 5%
$16,282 Vol.
$16,282 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
2%
21°C
10%
22°C
45%
23°C
36%
24°C
5%
25°C
2%
26°C
<1%
27°C or higher
<1%
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.
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 28, 2026, 12:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...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.
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Official Met Office forecasts for London on August 30 indicate a maximum of 22°C amid mostly cloudy skies, scattered showers, and moderate southwesterly winds, establishing the primary driver behind the 47.5% implied probability for 22°C and 35.5% for 23°C. Ensemble models show limited warming potential from Atlantic air masses and persistent cloud cover suppressing peaks, consistent with late-August climatology where highs typically range 20–23°C. Trader consensus reflects high confidence in this narrow band, with lower odds for 24°C or above tied to any unexpected clearing or 21°C or below linked to heavier rainfall. Updated guidance through the evening of August 29 will refine 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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