Recent observational data from Milan stations show overnight lows stabilizing near 17–18°C under clear, calm conditions on September 20, aligning closely with the month’s climatological average minimum of 16°C. Light winds and high pressure favored modest radiative cooling without deeper cold-air advection, keeping temperatures from dropping further while daytime highs reached 27–28°C. Model consensus from regional forecasts and reanalysis placed the daily low in a narrow band around this value, reinforcing trader consensus that 16°C best matches official resolution criteria. With resolution imminent, the 56.5% implied probability reflects this tight clustering of measurements around historical norms rather than outlier cooling.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Milan on September 20?
11°C 20%
12°C 20%
10°C or below 19%
13°C 1.0%
$2,687 Vol.
$2,687 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C or higher
No
11°C 20%
12°C 20%
10°C or below 19%
13°C 1.0%
$2,687 Vol.
$2,687 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
Yes
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=limc
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 18, 2026, 12:30 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=limcResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: 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=limc
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=limcResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent observational data from Milan stations show overnight lows stabilizing near 17–18°C under clear, calm conditions on September 20, aligning closely with the month’s climatological average minimum of 16°C. Light winds and high pressure favored modest radiative cooling without deeper cold-air advection, keeping temperatures from dropping further while daytime highs reached 27–28°C. Model consensus from regional forecasts and reanalysis placed the daily low in a narrow band around this value, reinforcing trader consensus that 16°C best matches official resolution criteria. With resolution imminent, the 56.5% implied probability reflects this tight clustering of measurements around historical norms rather than outlier cooling.
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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