A major European heatwave driven by a strong subtropical ridge and influx of Saharan air has pushed northern Italy well above seasonal norms, with official forecasts for Milan on June 23 centering on 36–37°C under sunny skies and light winds. BBC guidance explicitly lists a 37°C high, while other models cluster near 36–97°F, creating the tight clustering of market-implied odds around 35–37°C. Clear conditions near the summer solstice maximize daytime insolation, while the Po Valley’s topography and Milan’s urban heat island amplify afternoon peaks; slight differences in predicted cloud timing or boundary-layer mixing explain the narrow spread among leading outcomes. Traders are weighting the latest high-resolution model consensus and any minor westward shift in the ridge axis that could trim the daily maximum by 1°C.
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 June 23?
Highest temperature in Milan on June 23?
34°C 100.0%
33°C or below <1%
35°C <1%
36°C <1%
$45,957 Vol.
$45,957 Vol.
Jun 23, 2026
33°C or below
No
34°C
Yes
35°C
No
36°C
No
37°C
No
38°C
No
39°C
No
40°C
No
41°C
No
42°C
No
43°C or higher
No
34°C 100.0%
33°C or below <1%
35°C <1%
36°C <1%
$45,957 Vol.
$45,957 Vol.
Jun 23, 2026
33°C or below
$5,113 Vol.
No
34°C
$10,721 Vol.
Yes
35°C
$10,172 Vol.
No
36°C
$7,837 Vol.
No
37°C
$6,086 Vol.
No
38°C
$1,981 Vol.
No
39°C
$1,972 Vol.
No
40°C
$1,262 Vol.
No
41°C
$271 Vol.
No
42°C
$271 Vol.
No
43°C or higher
$271 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Malpensa Intl Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.A major European heatwave driven by a strong subtropical ridge and influx of Saharan air has pushed northern Italy well above seasonal norms, with official forecasts for Milan on June 23 centering on 36–37°C under sunny skies and light winds. BBC guidance explicitly lists a 37°C high, while other models cluster near 36–97°F, creating the tight clustering of market-implied odds around 35–37°C. Clear conditions near the summer solstice maximize daytime insolation, while the Po Valley’s topography and Milan’s urban heat island amplify afternoon peaks; slight differences in predicted cloud timing or boundary-layer mixing explain the narrow spread among leading outcomes. Traders are weighting the latest high-resolution model consensus and any minor westward shift in the ridge axis that could trim the daily maximum by 1°C.
This market will resolve to the temperature range that contains the highest temperature recorded at the Malpensa Intl Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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 Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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: Jun 21, 2026, 12:11 AM ET
Volume
$45,957End Date
Jun 23, 2026Market Opened
Jun 21, 2026, 12:11 AM ETResolution Source
https://www.wunderground.com/history/daily/it/milan/LIMCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Malpensa Intl Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.A major European heatwave driven by a strong subtropical ridge and influx of Saharan air has pushed northern Italy well above seasonal norms, with official forecasts for Milan on June 23 centering on 36–37°C under sunny skies and light winds. BBC guidance explicitly lists a 37°C high, while other models cluster near 36–97°F, creating the tight clustering of market-implied odds around 35–37°C. Clear conditions near the summer solstice maximize daytime insolation, while the Po Valley’s topography and Milan’s urban heat island amplify afternoon peaks; slight differences in predicted cloud timing or boundary-layer mixing explain the narrow spread among leading outcomes. Traders are weighting the latest high-resolution model consensus and any minor westward shift in the ridge axis that could trim the daily maximum by 1°C.
This market will resolve to the temperature range that contains the highest temperature recorded at the Malpensa Intl Airport Station in degrees Celsius on 23 Jun '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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 Wunderground, specifically the highest temperature recorded for all times on this day for the Malpensa Intl Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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
$45,957End Date
Jun 23, 2026Market Opened
Jun 21, 2026, 12:11 AM ETResolution Source
https://www.wunderground.com/history/daily/it/milan/LIMCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
A major European heatwave driven by a strong subtropical ridge and influx of Saharan air has pushed northern Italy well above seasonal norms, with official forecasts for Milan on June 23 centering on 36–37°C under sunny skies and light winds. BBC guidance explicitly lists a 37°C high, while other models cluster near 36–97°F, creating the tight clustering of market-implied odds around 35–37°C. Clear conditions near the summer solstice maximize daytime insolation, while the Po Valley’s topography and Milan’s urban heat island amplify afternoon peaks; slight differences in predicted cloud timing or boundary-layer mixing explain the narrow spread among leading outcomes. Traders are weighting the latest high-resolution model consensus and any minor westward shift in the ridge axis that could trim the daily maximum by 1°C.
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