Recent forecasts from models including GFS and ECMWF indicate a high of 23–24°C in Milan on September 18, driven by easterly flow and scattered showers that limit daytime heating following cooler, wetter conditions on the 17th. This aligns with the market’s leading implied probabilities for 25°C or higher (49.5%) and 23°C (32%), reflecting trader assessment of modest warming potential amid cloud cover and precipitation. September climatology typically features highs near 22–24°C, and current ensemble guidance shows limited upside beyond 25°C given stable high pressure building later in the weekend. Updated model runs and any overnight clearing will be key near-term data points.
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?
Highest temperature in Milan on September 18?
25°C or higher 99%
23°C 32%
24°C 22%
21°C 22%
NEW
NEW
Sep 18, 2026
15°C or below
2%
16°C
2%
17°C
2%
18°C
2%
19°C
4%
20°C
10%
21°C
22%
22°C
15%
23°C
32%
24°C
22%
25°C or higher
99%
25°C or higher 99%
23°C 32%
24°C 22%
21°C 22%
NEW
NEW
Sep 18, 2026
15°C or below
$0 Vol.
2%
16°C
$0 Vol.
2%
17°C
$0 Vol.
2%
18°C
$0 Vol.
2%
19°C
$0 Vol.
4%
20°C
$0 Vol.
10%
21°C
$4 Vol.
22%
22°C
$10 Vol.
15%
23°C
$1 Vol.
32%
24°C
$0 Vol.
22%
25°C or higher
$0 Vol.
99%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Malpensa Intl Airport Station in degrees Celsius on 18 Sep '26.
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.Recent forecasts from models including GFS and ECMWF indicate a high of 23–24°C in Milan on September 18, driven by easterly flow and scattered showers that limit daytime heating following cooler, wetter conditions on the 17th. This aligns with the market’s leading implied probabilities for 25°C or higher (49.5%) and 23°C (32%), reflecting trader assessment of modest warming potential amid cloud cover and precipitation. September climatology typically features highs near 22–24°C, and current ensemble guidance shows limited upside beyond 25°C given stable high pressure building later in the weekend. Updated model runs and any overnight clearing will be key near-term data points.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Malpensa Intl Airport Station in degrees Celsius on 18 Sep '26.
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.
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
Volume
$15End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=limcResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Malpensa Intl Airport Station in degrees Celsius on 18 Sep '26.
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.Recent forecasts from models including GFS and ECMWF indicate a high of 23–24°C in Milan on September 18, driven by easterly flow and scattered showers that limit daytime heating following cooler, wetter conditions on the 17th. This aligns with the market’s leading implied probabilities for 25°C or higher (49.5%) and 23°C (32%), reflecting trader assessment of modest warming potential amid cloud cover and precipitation. September climatology typically features highs near 22–24°C, and current ensemble guidance shows limited upside beyond 25°C given stable high pressure building later in the weekend. Updated model runs and any overnight clearing will be key near-term data points.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Malpensa Intl Airport Station in degrees Celsius on 18 Sep '26.
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.
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.
Volume
$15End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 12:57 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=limcResolver
0x69c47De9D...Recent forecasts from models including GFS and ECMWF indicate a high of 23–24°C in Milan on September 18, driven by easterly flow and scattered showers that limit daytime heating following cooler, wetter conditions on the 17th. This aligns with the market’s leading implied probabilities for 25°C or higher (49.5%) and 23°C (32%), reflecting trader assessment of modest warming potential amid cloud cover and precipitation. September climatology typically features highs near 22–24°C, and current ensemble guidance shows limited upside beyond 25°C given stable high pressure building later in the weekend. Updated model runs and any overnight clearing will be key near-term data points.
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