Trader consensus on Polymarket, with 24-26°C outcomes each hovering near 25%, mirrors the tight clustering in latest ECMWF and GFS ensemble forecasts projecting Madrid's April 5 high temperature at 24-27°C, corroborated by AEMET's 27°C guidance. This positioning stems from a building high-pressure ridge over Iberia fostering subsidence warming and clear skies for enhanced solar heating, elevating readings well above the historical early-April average of 18-19°C amid persistent positive temperature anomalies from a mild 2025/26 winter. Differentiating the close leaders are model variances in low-level cloud persistence, northerly wind speeds influencing boundary-layer mixing, and exact ridge axis placement. Daily forecast updates from NOAA, ECMWF, and AEMET through Sunday could refine these market-implied odds prior to resolution using Adolfo Suárez Madrid-Barajas Airport observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on April 5?
Highest temperature in Madrid on April 5?
26°C 26%
24°C 25%
25°C 24%
27°C 16%
19°C or below
<1%
20°C
2%
21°C
1%
22°C
2%
23°C
10%
24°C
25%
25°C
24%
26°C
26%
27°C
16%
28°C
5%
29°C or higher
5%
26°C 26%
24°C 25%
25°C 24%
27°C 16%
19°C or below
<1%
20°C
2%
21°C
1%
22°C
2%
23°C
10%
24°C
25%
25°C
24%
26°C
26%
27°C
16%
28°C
5%
29°C or higher
5%
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: Apr 1, 2026, 6:47 AM 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...Trader consensus on Polymarket, with 24-26°C outcomes each hovering near 25%, mirrors the tight clustering in latest ECMWF and GFS ensemble forecasts projecting Madrid's April 5 high temperature at 24-27°C, corroborated by AEMET's 27°C guidance. This positioning stems from a building high-pressure ridge over Iberia fostering subsidence warming and clear skies for enhanced solar heating, elevating readings well above the historical early-April average of 18-19°C amid persistent positive temperature anomalies from a mild 2025/26 winter. Differentiating the close leaders are model variances in low-level cloud persistence, northerly wind speeds influencing boundary-layer mixing, and exact ridge axis placement. Daily forecast updates from NOAA, ECMWF, and AEMET through Sunday could refine these market-implied odds prior to resolution using Adolfo Suárez Madrid-Barajas Airport observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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