Current ensemble forecasts from sources including ECMWF, GFS, and regional models show a high near 21°C for Amsterdam on August 30 under persistent cloud cover, scattered showers, and moderate southwesterly flow off the Atlantic. This pattern limits daytime insolation and advects milder maritime air, keeping maxima below typical late-August averages near 22°C. The tight 21–22°C market split reflects model sensitivity to exact cloud timing and shower intensity, which can shift peak readings by 1°C. Stronger winds or earlier clearing could briefly support 22°C, while heavier or more prolonged precipitation favors the lower outcome.
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 30?
22°C 45%
21°C 42%
23°C 10%
20°C 8%
16°C or below
<1%
17°C
<1%
18°C
1%
19°C
5%
20°C
8%
21°C
42%
22°C
45%
23°C
10%
24°C
5%
25°C
2%
26°C or higher
1%
22°C 45%
21°C 42%
23°C 10%
20°C 8%
16°C or below
<1%
17°C
<1%
18°C
1%
19°C
5%
20°C
8%
21°C
42%
22°C
45%
23°C
10%
24°C
5%
25°C
2%
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 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.
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 28, 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 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.
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...Current ensemble forecasts from sources including ECMWF, GFS, and regional models show a high near 21°C for Amsterdam on August 30 under persistent cloud cover, scattered showers, and moderate southwesterly flow off the Atlantic. This pattern limits daytime insolation and advects milder maritime air, keeping maxima below typical late-August averages near 22°C. The tight 21–22°C market split reflects model sensitivity to exact cloud timing and shower intensity, which can shift peak readings by 1°C. Stronger winds or earlier clearing could briefly support 22°C, while heavier or more prolonged precipitation favors the lower outcome.
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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