Latest global forecast models show Milan’s peak temperature on May 18 settling near 20–21 °C as a weak low-pressure system lingers over the Po Valley, bringing variable cloud cover and scattered showers that limit daytime heating. Ensemble runs from ECMWF and GFS place the most probable maximum in this narrow band, with modest afternoon clearing the main variable that could push readings to 22 °C or keep them at 19 °C. These values sit close to the long-term mid-May climatological average of 22 °C, so traders are pricing the balance between expected moisture and any brief sun breaks that enhance surface warming. Resolution will hinge on the official maximum recorded at Milano Linate, with final model updates expected in the next 24 hours.
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 May 18?
21°C 33%
20°C 28%
19°C 20%
22°C 18%
16°C or below
1%
17°C
2%
18°C
5%
19°C
20%
20°C
28%
21°C
33%
22°C
18%
23°C
4%
24°C
3%
25°C
1%
26°C or higher
1%
21°C 33%
20°C 28%
19°C 20%
22°C 18%
16°C or below
1%
17°C
2%
18°C
5%
19°C
20%
20°C
28%
21°C
33%
22°C
18%
23°C
4%
24°C
3%
25°C
1%
26°C or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Malpensa Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/it/milan/LIMC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 16, 2026, 12:04 AM ET
Resolution Source
https://www.wunderground.com/history/daily/it/milan/LIMCThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Malpensa Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/it/milan/LIMC.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/it/milan/LIMCLatest global forecast models show Milan’s peak temperature on May 18 settling near 20–21 °C as a weak low-pressure system lingers over the Po Valley, bringing variable cloud cover and scattered showers that limit daytime heating. Ensemble runs from ECMWF and GFS place the most probable maximum in this narrow band, with modest afternoon clearing the main variable that could push readings to 22 °C or keep them at 19 °C. These values sit close to the long-term mid-May climatological average of 22 °C, so traders are pricing the balance between expected moisture and any brief sun breaks that enhance surface warming. Resolution will hinge on the official maximum recorded at Milano Linate, with final model updates expected in the next 24 hours.
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