Recent forecasts from multiple models indicate a high near 23°C in Milan on September 18, driven by cooling easterly flow and scattered showers following thunderstorms on the 17th, which suppress daytime maxima below recent 25–27°C readings. September climatology places average highs around 24°C, with the current setup reflecting typical late-summer transition patterns where cloud cover and modest winds limit radiative heating. Trader emphasis on the 23°C outcome aligns with this consensus, while the 25°C+ share captures upside potential if clearing occurs faster than expected; new ECMWF or GFS runs and official updates will likely 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 Milan on September 18?
25°C or higher 51%
23°C 36%
24°C 23%
22°C 16%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
10%
21°C
15%
22°C
16%
23°C
36%
24°C
23%
25°C or higher
51%
25°C or higher 51%
23°C 36%
24°C 23%
22°C 16%
15°C or below
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
1%
20°C
10%
21°C
15%
22°C
16%
23°C
36%
24°C
23%
25°C or higher
51%
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=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 16, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=limcResolver
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=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...Recent forecasts from multiple models indicate a high near 23°C in Milan on September 18, driven by cooling easterly flow and scattered showers following thunderstorms on the 17th, which suppress daytime maxima below recent 25–27°C readings. September climatology places average highs around 24°C, with the current setup reflecting typical late-summer transition patterns where cloud cover and modest winds limit radiative heating. Trader emphasis on the 23°C outcome aligns with this consensus, while the 25°C+ share captures upside potential if clearing occurs faster than expected; new ECMWF or GFS runs and official updates will likely 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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