Recent forecast models from the Met Office and GFS data indicate an overnight minimum near 13°C in London on September 5, 2026, under partly cloudy skies with light westerly winds and limited radiative cooling. This aligns with the climatological average low of 12.4°C for the date and current observations showing temperatures stabilizing around 13–15°C through the night. The near-certain market-implied odds reflect strong model consensus on these conditions. A realistic shift below 13°C would require clearer skies or stronger northerly flow than projected, while warmer readings could occur only with unexpected cloud cover or delayed cooling. Final official readings from stations like Heathrow will determine 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 5?
13°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$9,833 Vol.
$9,833 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
13°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$9,833 Vol.
$9,833 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
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 3, 2026, 12:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=eglcResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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...Outcome proposed: Yes
No dispute
Final outcome: Yes
Recent forecast models from the Met Office and GFS data indicate an overnight minimum near 13°C in London on September 5, 2026, under partly cloudy skies with light westerly winds and limited radiative cooling. This aligns with the climatological average low of 12.4°C for the date and current observations showing temperatures stabilizing around 13–15°C through the night. The near-certain market-implied odds reflect strong model consensus on these conditions. A realistic shift below 13°C would require clearer skies or stronger northerly flow than projected, while warmer readings could occur only with unexpected cloud cover or delayed cooling. Final official readings from stations like Heathrow will determine 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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