Recent model consensus from ECMWF, GFS, and KNMI Harmonie indicates a sharp cooldown on August 28 as southwest flow advects cooler maritime air behind Thursday’s peak warmth near 29°C, with widespread showers and thunderstorms limiting solar heating. This supports maximum temperatures clustered around 21–23°C at Amsterdam’s Schiphol station, consistent with climatological late-August averages near 21°C and the market’s tight distribution favoring those outcomes. Ensemble spread and convective timing introduce remaining uncertainty of roughly ±1–2°C, while updated runs and official KNMI guidance ahead of landfall timing will refine the precise daily high.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Amsterdam on August 28?
22°C 36%
23°C 27%
21°C 21%
24°C 11%
16°C or below
2%
17°C
2%
18°C
1%
19°C
3%
20°C
5%
21°C
21%
22°C
36%
23°C
27%
24°C
11%
25°C
4%
26°C or higher
1%
22°C 36%
23°C 27%
21°C 21%
24°C 11%
16°C or below
2%
17°C
2%
18°C
1%
19°C
3%
20°C
5%
21°C
21%
22°C
36%
23°C
27%
24°C
11%
25°C
4%
26°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=eham
If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Market Opened: Aug 26, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
0x69c47De9D...Recent model consensus from ECMWF, GFS, and KNMI Harmonie indicates a sharp cooldown on August 28 as southwest flow advects cooler maritime air behind Thursday’s peak warmth near 29°C, with widespread showers and thunderstorms limiting solar heating. This supports maximum temperatures clustered around 21–23°C at Amsterdam’s Schiphol station, consistent with climatological late-August averages near 21°C and the market’s tight distribution favoring those outcomes. Ensemble spread and convective timing introduce remaining uncertainty of roughly ±1–2°C, while updated runs and official KNMI guidance ahead of landfall timing will refine the precise daily high.
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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