Trader consensus on a 18°C high temperature in Madrid on March 18 stems from aligned forecasts from authoritative sources like Spain's AEMET and ECMWF ensembles, which project a mild daytime peak under stable high-pressure influence amid typical mid-March patterns averaging 14-18°C historically. GFS and UKMO models corroborate this with afternoon maxima around 17-19°C, minimal cloud cover, and light winds limiting advection. Recent 12Z updates show negligible spread, solidifying 100% implied probability. Realistic challenges include an unforeseen southerly foehn wind surge or model bias underestimating solar heating, potentially pushing toward 20°C, though low-probability cold snaps are off the table per current synoptics.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on March 18?
Highest temperature in Madrid on March 18?
18°C 100.0%
19°C <1%
20°C <1%
21°C <1%
$94,328 Vol.
$94,328 Vol.
18°C
100%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C or higher
<1%
18°C 100.0%
19°C <1%
20°C <1%
21°C <1%
$94,328 Vol.
$94,328 Vol.
18°C
100%
19°C
<1%
20°C
<1%
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 16, 2026, 2:26 PM ET
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Trader consensus on a 18°C high temperature in Madrid on March 18 stems from aligned forecasts from authoritative sources like Spain's AEMET and ECMWF ensembles, which project a mild daytime peak under stable high-pressure influence amid typical mid-March patterns averaging 14-18°C historically. GFS and UKMO models corroborate this with afternoon maxima around 17-19°C, minimal cloud cover, and light winds limiting advection. Recent 12Z updates show negligible spread, solidifying 100% implied probability. Realistic challenges include an unforeseen southerly foehn wind surge or model bias underestimating solar heating, potentially pushing toward 20°C, though low-probability cold snaps are off the table per current synoptics.
Experimental AI-generated summary referencing Polymarket data · Updated
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