Trader consensus on Polymarket closely splits between 17°C (35.5% implied probability) and 18°C (32.5%) for Madrid's highest temperature today, driven by the latest ensemble forecasts from AEMET, ECMWF, and GFS projecting daytime maxima in the 16.5–18.5°C range under mild spring conditions influenced by a weak Azores High. Recent observations show highs near 18°C earlier this week from southerly flows, but the past 48 hours' shift to northerly winds has introduced cooler air advection and potential afternoon cloud cover from an approaching Atlantic disturbance, with ensemble means centering on 17°C. Key differentiators include boundary-layer insolation variability and cloud thickness—thicker overcast favors 17°C, while partial clearing could enable 18°C—against Madrid's late-March climatological average of 16–17°C. Hourly AEMET updates from Retiro and Barajas stations will clarify resolution as the day progresses.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on March 28?
Highest temperature in Madrid on March 28?
17°C 35%
18°C 32%
16°C 16%
19°C 12.4%
$40,748 Vol.
$40,748 Vol.
13°C or below
1%
14°C
1%
15°C
2%
16°C
16%
17°C
35%
18°C
32%
19°C
12%
20°C
4%
21°C
1%
22°C
<1%
23°C or higher
<1%
17°C 35%
18°C 32%
16°C 16%
19°C 12.4%
$40,748 Vol.
$40,748 Vol.
13°C or below
1%
14°C
1%
15°C
2%
16°C
16%
17°C
35%
18°C
32%
19°C
12%
20°C
4%
21°C
1%
22°C
<1%
23°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 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 24, 2026, 6:05 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 closely splits between 17°C (35.5% implied probability) and 18°C (32.5%) for Madrid's highest temperature today, driven by the latest ensemble forecasts from AEMET, ECMWF, and GFS projecting daytime maxima in the 16.5–18.5°C range under mild spring conditions influenced by a weak Azores High. Recent observations show highs near 18°C earlier this week from southerly flows, but the past 48 hours' shift to northerly winds has introduced cooler air advection and potential afternoon cloud cover from an approaching Atlantic disturbance, with ensemble means centering on 17°C. Key differentiators include boundary-layer insolation variability and cloud thickness—thicker overcast favors 17°C, while partial clearing could enable 18°C—against Madrid's late-March climatological average of 16–17°C. Hourly AEMET updates from Retiro and Barajas stations will clarify resolution as the day progresses.
Experimental AI-generated summary referencing Polymarket data · Updated
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