Current ensemble forecasts from models such as GFS show clear skies, light southerly winds, and stable high pressure over Madrid, positioning the September 14 maximum near 34°C—above the 26.8°C climatological average high. These conditions support strong daytime heating with minimal cloud interference or precipitation, aligning with the market-implied 66% probability for 34°C and 27% for 35°C. Official verification by AEMET will determine the exact peak, with any last-minute model shifts in boundary-layer mixing or advection potentially altering the outcome before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Madrid on September 14?
34°C 66%
35°C 26%
33°C 7%
36°C 1.6%
$18,378 Vol.
$18,378 Vol.
29°C or below
<1%
30°C
1%
31°C
<1%
32°C
<1%
33°C
7%
34°C
66%
35°C
26%
36°C
2%
37°C
<1%
38°C
<1%
39°C or higher
<1%
34°C 66%
35°C 26%
33°C 7%
36°C 1.6%
$18,378 Vol.
$18,378 Vol.
29°C or below
<1%
30°C
1%
31°C
<1%
32°C
<1%
33°C
7%
34°C
66%
35°C
26%
36°C
2%
37°C
<1%
38°C
<1%
39°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lemd
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 12, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=lemdResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=lemd
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=lemdResolver
0x69c47De9D...Current ensemble forecasts from models such as GFS show clear skies, light southerly winds, and stable high pressure over Madrid, positioning the September 14 maximum near 34°C—above the 26.8°C climatological average high. These conditions support strong daytime heating with minimal cloud interference or precipitation, aligning with the market-implied 66% probability for 34°C and 27% for 35°C. Official verification by AEMET will determine the exact peak, with any last-minute model shifts in boundary-layer mixing or advection potentially altering the outcome before resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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