Latest ensemble forecasts from the ECMWF and KNMI place Amsterdam’s June 22 maximum near 27–28 °C, reflecting a transitional pattern of weak high pressure and light southerly flow that limits strong warm-air advection while allowing modest daytime heating under broken cloud. Small differences in modeled cloud timing, boundary-layer mixing depth, and the precise arrival of a weak Atlantic front create the tight spread between 27 °C and 28 °C; runs showing slightly clearer skies or stronger insolation push peaks toward the upper end, while increased low-level moisture or earlier cloud build-up favor the lower value. Historical June maxima in Amsterdam average around 20–21 °C, so current guidance remains above climatology but well below heat-wave thresholds. Updated high-resolution runs and the midday KNMI briefing on June 21 will likely tighten the distribution ahead of market 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 June 22?
Highest temperature in Amsterdam on June 22?
25°C or below 100.0%
26°C <1%
27°C <1%
28°C <1%
$57,661 Vol.
$57,661 Vol.
Jun 22, 2026
25°C or below
Yes
26°C
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C or higher
No
25°C or below 100.0%
26°C <1%
27°C <1%
28°C <1%
$57,661 Vol.
$57,661 Vol.
Jun 22, 2026
25°C or below
$14,991 Vol.
Yes
26°C
$16,337 Vol.
No
27°C
$5,227 Vol.
No
28°C
$5,177 Vol.
No
29°C
$6,234 Vol.
No
30°C
$1,915 Vol.
No
31°C
$2,112 Vol.
No
32°C
$3,034 Vol.
No
33°C
$2,171 Vol.
No
34°C
$162 Vol.
No
35°C or higher
$301 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 22 Jun '26.
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.Latest ensemble forecasts from the ECMWF and KNMI place Amsterdam’s June 22 maximum near 27–28 °C, reflecting a transitional pattern of weak high pressure and light southerly flow that limits strong warm-air advection while allowing modest daytime heating under broken cloud. Small differences in modeled cloud timing, boundary-layer mixing depth, and the precise arrival of a weak Atlantic front create the tight spread between 27 °C and 28 °C; runs showing slightly clearer skies or stronger insolation push peaks toward the upper end, while increased low-level moisture or earlier cloud build-up favor the lower value. Historical June maxima in Amsterdam average around 20–21 °C, so current guidance remains above climatology but well below heat-wave thresholds. Updated high-resolution runs and the midday KNMI briefing on June 21 will likely tighten the distribution ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 22 Jun '26.
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.
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.
Market Opened: Jun 20, 2026, 12:17 AM ET
Volume
$57,661End Date
Jun 22, 2026Market Opened
Jun 20, 2026, 12:17 AM ETResolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 22 Jun '26.
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.Latest ensemble forecasts from the ECMWF and KNMI place Amsterdam’s June 22 maximum near 27–28 °C, reflecting a transitional pattern of weak high pressure and light southerly flow that limits strong warm-air advection while allowing modest daytime heating under broken cloud. Small differences in modeled cloud timing, boundary-layer mixing depth, and the precise arrival of a weak Atlantic front create the tight spread between 27 °C and 28 °C; runs showing slightly clearer skies or stronger insolation push peaks toward the upper end, while increased low-level moisture or earlier cloud build-up favor the lower value. Historical June maxima in Amsterdam average around 20–21 °C, so current guidance remains above climatology but well below heat-wave thresholds. Updated high-resolution runs and the midday KNMI briefing on June 21 will likely tighten the distribution ahead of market resolution.
This market will resolve to the temperature range that contains the highest temperature recorded at the Amsterdam Airport Schiphol Station in degrees Celsius on 22 Jun '26.
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.
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.
Volume
$57,661End Date
Jun 22, 2026Market Opened
Jun 20, 2026, 12:17 AM ETResolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Latest ensemble forecasts from the ECMWF and KNMI place Amsterdam’s June 22 maximum near 27–28 °C, reflecting a transitional pattern of weak high pressure and light southerly flow that limits strong warm-air advection while allowing modest daytime heating under broken cloud. Small differences in modeled cloud timing, boundary-layer mixing depth, and the precise arrival of a weak Atlantic front create the tight spread between 27 °C and 28 °C; runs showing slightly clearer skies or stronger insolation push peaks toward the upper end, while increased low-level moisture or earlier cloud build-up favor the lower value. Historical June maxima in Amsterdam average around 20–21 °C, so current guidance remains above climatology but well below heat-wave thresholds. Updated high-resolution runs and the midday KNMI briefing on June 21 will likely tighten the distribution ahead of market 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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