Trader consensus on Polymarket tilts toward a Madrid high of 18°C at 26.5%, driven by the latest ECMWF and GFS ensemble forecasts converging on 17-19°C amid a high-pressure ridge ushering mild Atlantic air into Iberia. These models, corroborated by Spain's AEMET, project daytime peaks from solar heating under partly cloudy skies, with 17-19°C edging out cooler 16°C due to stronger subsidence suppressing clouds. Historical March averages hover at 16-18°C, but recent model runs show slight warming trends from southerly flow, differentiating outcomes; greater uncertainty arises from potential overnight cold advection or diurnally variable boundary layer mixing, keeping 23°C+ odds low at under 6%. Key watch: tomorrow's 12Z updates.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on March 23?
Highest temperature in Madrid on March 23?
17°C 27%
18°C 25%
16°C 16%
19°C 16%
$11,056 Vol.
$11,056 Vol.
14°C or below
1%
15°C
7%
16°C
22%
17°C
21%
18°C
25%
19°C
22%
20°C
5%
21°C
3%
22°C
4%
23°C
6%
24°C or higher
3%
17°C 27%
18°C 25%
16°C 16%
19°C 16%
$11,056 Vol.
$11,056 Vol.
14°C or below
1%
15°C
7%
16°C
22%
17°C
21%
18°C
25%
19°C
22%
20°C
5%
21°C
3%
22°C
4%
23°C
6%
24°C or higher
3%
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 19, 2026, 6:11 AM 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 Polymarket tilts toward a Madrid high of 18°C at 26.5%, driven by the latest ECMWF and GFS ensemble forecasts converging on 17-19°C amid a high-pressure ridge ushering mild Atlantic air into Iberia. These models, corroborated by Spain's AEMET, project daytime peaks from solar heating under partly cloudy skies, with 17-19°C edging out cooler 16°C due to stronger subsidence suppressing clouds. Historical March averages hover at 16-18°C, but recent model runs show slight warming trends from southerly flow, differentiating outcomes; greater uncertainty arises from potential overnight cold advection or diurnally variable boundary layer mixing, keeping 23°C+ odds low at under 6%. Key watch: tomorrow's 12Z updates.
Experimental AI-generated summary referencing Polymarket data · Updated
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