Trader consensus on Polymarket heavily favors a high of 16°C (31%) or 17°C (27.5%) for Madrid on March 28, reflecting the tight spread in latest forecast models from AEMET and ECMWF ensembles, which project daytime maxima in the 15–18°C range amid a high-pressure ridge over Iberia bringing mild southerly flows but increasing cloud cover and light showers limiting peak warming. Recent GFS updates from the past 24 hours show a slight downward nudge toward 16°C due to enhanced northerly shear and marine layer influence, differentiating it from warmer 17–18°C runs earlier in the week, while historical March norms (average 17°C) and small 1°C model uncertainties keep lower outcomes viable. AEMET's next advisory at 1200 UTC will refine this, as short-range temperature forecasts carry ±2°C error margins from synoptic variability.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Madrid on March 28?
Highest temperature in Madrid on March 28?
16°C 31%
17°C 28%
18°C 17%
19°C 15%
13°C or below
2%
14°C
2%
15°C
10%
16°C
31%
17°C
28%
18°C
17%
19°C
15%
20°C
6%
21°C
3%
22°C
2%
23°C or higher
1%
16°C 31%
17°C 28%
18°C 17%
19°C 15%
13°C or below
2%
14°C
2%
15°C
10%
16°C
31%
17°C
28%
18°C
17%
19°C
15%
20°C
6%
21°C
3%
22°C
2%
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...Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Trader consensus on Polymarket heavily favors a high of 16°C (31%) or 17°C (27.5%) for Madrid on March 28, reflecting the tight spread in latest forecast models from AEMET and ECMWF ensembles, which project daytime maxima in the 15–18°C range amid a high-pressure ridge over Iberia bringing mild southerly flows but increasing cloud cover and light showers limiting peak warming. Recent GFS updates from the past 24 hours show a slight downward nudge toward 16°C due to enhanced northerly shear and marine layer influence, differentiating it from warmer 17–18°C runs earlier in the week, while historical March norms (average 17°C) and small 1°C model uncertainties keep lower outcomes viable. AEMET's next advisory at 1200 UTC will refine this, as short-range temperature forecasts carry ±2°C error margins from synoptic variability.
Experimental AI-generated summary referencing Polymarket data · Updated
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