**Current forecast models from sources like ECMWF and GFS indicate a high near 18–19°C for Amsterdam on September 21 under building high pressure, light northwest winds, and mostly cloudy conditions that moderate daytime heating.** This aligns closely with the long-term average high of 18.5°C for the date, while recent observations show stable mild conditions without significant warm-air advection. Trader emphasis on 19°C reflects the tight clustering of ensemble guidance around that value, with limited upside potential from clearer skies or stronger southerly flow. Key resolution thresholds center on the official KNMI maximum; any late-model shifts in cloud cover or boundary-layer mixing could nudge the outcome between 18°C and 20°C before final readings.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · AggiornatoLa temperatura più alta ad Amsterdam il 21 settembre?
19°C 66%
18°C 18%
20°C 16%
17°C 2%
13°C o inferiore
<1%
14°C
<1%
15°C
1%
16°C
<1%
17°C
2%
18°C
18%
19°C
66%
20°C
16%
21°C
2%
22°C
1%
23°C o superiore
<1%
19°C 66%
18°C 18%
20°C 16%
17°C 2%
13°C o inferiore
<1%
14°C
<1%
15°C
1%
16°C
<1%
17°C
2%
18°C
18%
19°C
66%
20°C
16%
21°C
2%
22°C
1%
23°C o superiore
<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=eham
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.
Mercato aperto: Sep 19, 2026, 12:58 AM ET
Fonte di risoluzione
https://www.weather.gov/wrh/timeseries?site=ehamRisolutore
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=eham
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.
Fonte di risoluzione
https://www.weather.gov/wrh/timeseries?site=ehamRisolutore
0x69c47De9D...**Current forecast models from sources like ECMWF and GFS indicate a high near 18–19°C for Amsterdam on September 21 under building high pressure, light northwest winds, and mostly cloudy conditions that moderate daytime heating.** This aligns closely with the long-term average high of 18.5°C for the date, while recent observations show stable mild conditions without significant warm-air advection. Trader emphasis on 19°C reflects the tight clustering of ensemble guidance around that value, with limited upside potential from clearer skies or stronger southerly flow. Key resolution thresholds center on the official KNMI maximum; any late-model shifts in cloud cover or boundary-layer mixing could nudge the outcome between 18°C and 20°C before final readings.
Riepilogo sperimentale generato dall'AI con riferimento ai dati di Polymarket. Questo non è un consiglio di trading e non ha alcun ruolo nella risoluzione di questo mercato. · Aggiornato
Fai attenzione ai link esterni.
Fai attenzione ai link esterni.
Domande frequenti