Recent forecasts from multiple meteorological models, including GFS runs updated as of early September 21, indicate a daily maximum near 19°C in Amsterdam under mostly cloudy to partly cloudy conditions with moderate northwest winds of 10–15 km/h. This aligns closely with the long-term climatological average high of 18.5°C for the date and current surface observations showing temperatures climbing from overnight lows around 13–14°C toward afternoon peaks in the upper teens. Model consensus and limited diurnal heating under stable high pressure support the strong market weighting toward 19°C, while slight variations in cloud cover or wind could shift the outcome modestly higher or lower by evening 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 Amsterdam on September 21?
Highest temperature in Amsterdam on September 21?
19°C 71%
18°C 13%
20°C 12%
17°C 3%
NEW
$11,233 Vol.
NEW
$11,233 Vol.
Sep 21, 2026
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
3%
18°C
13%
19°C
71%
20°C
12%
21°C
2%
22°C
<1%
23°C or higher
<1%
19°C 71%
18°C 13%
20°C 12%
17°C 3%
NEW
$11,233 Vol.
NEW
$11,233 Vol.
Sep 21, 2026
13°C or below
$272 Vol.
<1%
14°C
$231 Vol.
<1%
15°C
$122 Vol.
<1%
16°C
$892 Vol.
<1%
17°C
$1,034 Vol.
3%
18°C
$2,039 Vol.
13%
19°C
$3,714 Vol.
71%
20°C
$1,910 Vol.
12%
21°C
$862 Vol.
2%
22°C
$75 Vol.
<1%
23°C or higher
$83 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 21 Sep '26.
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.Recent forecasts from multiple meteorological models, including GFS runs updated as of early September 21, indicate a daily maximum near 19°C in Amsterdam under mostly cloudy to partly cloudy conditions with moderate northwest winds of 10–15 km/h. This aligns closely with the long-term climatological average high of 18.5°C for the date and current surface observations showing temperatures climbing from overnight lows around 13–14°C toward afternoon peaks in the upper teens. Model consensus and limited diurnal heating under stable high pressure support the strong market weighting toward 19°C, while slight variations in cloud cover or wind could shift the outcome modestly higher or lower by evening resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 21 Sep '26.
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.
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.
Market Opened: Sep 19, 2026, 12:58 AM ET
Volume
$11,233End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 21 Sep '26.
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.Recent forecasts from multiple meteorological models, including GFS runs updated as of early September 21, indicate a daily maximum near 19°C in Amsterdam under mostly cloudy to partly cloudy conditions with moderate northwest winds of 10–15 km/h. This aligns closely with the long-term climatological average high of 18.5°C for the date and current surface observations showing temperatures climbing from overnight lows around 13–14°C toward afternoon peaks in the upper teens. Model consensus and limited diurnal heating under stable high pressure support the strong market weighting toward 19°C, while slight variations in cloud cover or wind could shift the outcome modestly higher or lower by evening resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 21 Sep '26.
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.
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.
Volume
$11,233End Date
Sep 21, 2026Market Opened
Sep 19, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
0x69c47De9D...Recent forecasts from multiple meteorological models, including GFS runs updated as of early September 21, indicate a daily maximum near 19°C in Amsterdam under mostly cloudy to partly cloudy conditions with moderate northwest winds of 10–15 km/h. This aligns closely with the long-term climatological average high of 18.5°C for the date and current surface observations showing temperatures climbing from overnight lows around 13–14°C toward afternoon peaks in the upper teens. Model consensus and limited diurnal heating under stable high pressure support the strong market weighting toward 19°C, while slight variations in cloud cover or wind could shift the outcome modestly higher or lower by evening 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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