Recent forecasts from multiple models, including ECMWF guidance and regional analyses, indicate a daytime maximum in Milan of 26–28°C on September 16, 2026, under partly cloudy skies with light southeasterly flow. A warm, stable airmass persists ahead of an approaching Atlantic low-pressure system, supporting peak readings near 27°C during afternoon hours before increasing cloud cover and scattered showers develop later in the day. This setup aligns with the market’s heavy weighting toward 27°C (56.5%) and 28°C (34.0%), while the modest probability for 26°C reflects potential for earlier cooling from precipitation. Historical September maxima in the Po Valley average near 24°C, but the current pattern has sustained above-normal warmth. Updated model runs and official Italian meteorological service briefings on Wednesday morning will provide the final observational window before 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 16?
27°C 51%
28°C 36%
26°C 14%
29°C 2%
$10,393 Vol.
$10,393 Vol.
22°C or below
1%
23°C
1%
24°C
<1%
25°C
<1%
26°C
14%
27°C
51%
28°C
36%
29°C
2%
30°C
<1%
31°C
2%
32°C or higher
<1%
27°C 51%
28°C 36%
26°C 14%
29°C 2%
$10,393 Vol.
$10,393 Vol.
22°C or below
1%
23°C
1%
24°C
<1%
25°C
<1%
26°C
14%
27°C
51%
28°C
36%
29°C
2%
30°C
<1%
31°C
2%
32°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=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 14, 2026, 12:56 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, including ECMWF guidance and regional analyses, indicate a daytime maximum in Milan of 26–28°C on September 16, 2026, under partly cloudy skies with light southeasterly flow. A warm, stable airmass persists ahead of an approaching Atlantic low-pressure system, supporting peak readings near 27°C during afternoon hours before increasing cloud cover and scattered showers develop later in the day. This setup aligns with the market’s heavy weighting toward 27°C (56.5%) and 28°C (34.0%), while the modest probability for 26°C reflects potential for earlier cooling from precipitation. Historical September maxima in the Po Valley average near 24°C, but the current pattern has sustained above-normal warmth. Updated model runs and official Italian meteorological service briefings on Wednesday morning will provide the final observational window before 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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