Latest ensemble guidance from the ECMWF and GFS, cross-checked against KNMI output, indicates a daily maximum near 26–27 °C for Amsterdam on June 18 under moderate westerly flow and partly cloudy skies. Minor variations in low-level moisture, timing of any thin high cloud, and daytime mixing depth create the narrow spread captured by trader prices, with 27 °C holding a slim lead. These values sit several degrees above the June climatological normal of roughly 19–20 °C, reflecting a transient warm advection episode rather than a persistent heatwave. Updated short-range runs issued in the past 24–48 hours have shown little shift, keeping resolution likely within the 26–28 °C band unless a last-moment change in insolation occurs.
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. · AggiornatoHighest temperature in Amsterdam on June 18?
27°C 37%
28°C 31%
26°C 24%
29°C 9%
21°C or below
<1%
22°C
<1%
23°C
<1%
24°C
1%
25°C
2%
26°C
24%
27°C
37%
28°C
31%
29°C
9%
30°C
1%
31°C or higher
<1%
27°C 37%
28°C 31%
26°C 24%
29°C 9%
21°C or below
<1%
22°C
<1%
23°C
<1%
24°C
1%
25°C
2%
26°C
24%
27°C
37%
28°C
31%
29°C
9%
30°C
1%
31°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 for the Amsterdam Airport Schiphol Station, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
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 until the first data point for the following date has been published on the resolution source.
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: Jun 16, 2026, 1:11 AM ET
Fonte di risoluzione
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Amsterdam Airport Schiphol Station, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
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 until the first data point for the following date has been published on the resolution source.
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.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Latest ensemble guidance from the ECMWF and GFS, cross-checked against KNMI output, indicates a daily maximum near 26–27 °C for Amsterdam on June 18 under moderate westerly flow and partly cloudy skies. Minor variations in low-level moisture, timing of any thin high cloud, and daytime mixing depth create the narrow spread captured by trader prices, with 27 °C holding a slim lead. These values sit several degrees above the June climatological normal of roughly 19–20 °C, reflecting a transient warm advection episode rather than a persistent heatwave. Updated short-range runs issued in the past 24–48 hours have shown little shift, keeping resolution likely within the 26–28 °C band unless a last-moment change in insolation occurs.
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
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