Official forecasts from the Met Office and supporting models indicate an overnight low near 11°C for London on September 24 under high pressure near 1030 hPa, with light variable winds and mostly clear to partly cloudy skies promoting radiative cooling. Recent warm conditions have moderated the drop, but a brief chilly spell aligns with the 10–12°C range dominating market-implied odds at 35% for 11°C, 23.5% for 10°C, and 21% for 12°C. Ensemble guidance shows limited spread, though minor shifts in cloud cover or wind could alter the exact minimum by 1–2°C before 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 September 24?
11°C 40%
8°C 31%
13°C 31%
14°C 31%
6°C or below
3%
7°C
6%
8°C
31%
9°C
12%
10°C
24%
11°C
36%
12°C
21%
13°C
31%
14°C
31%
15°C
31%
16°C or higher
2%
11°C 40%
8°C 31%
13°C 31%
14°C 31%
6°C or below
3%
7°C
6%
8°C
31%
9°C
12%
10°C
24%
11°C
36%
12°C
21%
13°C
31%
14°C
31%
15°C
31%
16°C or higher
2%
The resolution source for this market will be information from NOAA, specifically the lowest 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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 22, 2026, 12:29 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 lowest 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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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 forecasts from the Met Office and supporting models indicate an overnight low near 11°C for London on September 24 under high pressure near 1030 hPa, with light variable winds and mostly clear to partly cloudy skies promoting radiative cooling. Recent warm conditions have moderated the drop, but a brief chilly spell aligns with the 10–12°C range dominating market-implied odds at 35% for 11°C, 23.5% for 10°C, and 21% for 12°C. Ensemble guidance shows limited spread, though minor shifts in cloud cover or wind could alter the exact minimum by 1–2°C before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions