Latest ECMWF and GFS ensemble forecasts project Madrid's highest temperature on April 4 clustering tightly at 22-24°C at Adolfo Suárez Madrid-Barajas Airport, fueling trader consensus with 23°C (28%) and 24°C (32.5%) as near-coequal leaders amid mild high-pressure dominance and clear skies. Recent observations show diurnal heating strengthening, with maxima rising from 19°C on April 2 to a forecasted 22°C today under light northerly winds at 15 km/h, per AEMET data—above the 18°C April climatological average. Differentiating factors include boundary-layer mixing variability and potential for minor high clouds limiting peak insolation, creating genuine uncertainty resolvable by afternoon observations. Watch final 12z model updates today for shifts before official AEMET measurement resolves the market.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on April 4?
Highest temperature in Madrid on April 4?
24°C 36%
23°C 29%
22°C 17%
25°C 16%
$17,643 Vol.
$17,643 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
1%
21°C
5%
22°C
17%
23°C
29%
24°C
36%
25°C
16%
26°C
3%
27°C or higher
2%
24°C 36%
23°C 29%
22°C 17%
25°C 16%
$17,643 Vol.
$17,643 Vol.
17°C or below
<1%
18°C
<1%
19°C
<1%
20°C
1%
21°C
5%
22°C
17%
23°C
29%
24°C
36%
25°C
16%
26°C
3%
27°C or higher
2%
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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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: Mar 29, 2026, 4:22 PM ET
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...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 Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
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/es/madrid/LEMDResolver
0x69c47De9D...Latest ECMWF and GFS ensemble forecasts project Madrid's highest temperature on April 4 clustering tightly at 22-24°C at Adolfo Suárez Madrid-Barajas Airport, fueling trader consensus with 23°C (28%) and 24°C (32.5%) as near-coequal leaders amid mild high-pressure dominance and clear skies. Recent observations show diurnal heating strengthening, with maxima rising from 19°C on April 2 to a forecasted 22°C today under light northerly winds at 15 km/h, per AEMET data—above the 18°C April climatological average. Differentiating factors include boundary-layer mixing variability and potential for minor high clouds limiting peak insolation, creating genuine uncertainty resolvable by afternoon observations. Watch final 12z model updates today for shifts before official AEMET measurement resolves the market.
Experimental AI-generated summary referencing Polymarket data · Updated
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