Official observations from Warsaw Chopin Airport meteorological station confirm the highest temperature reached 19°C on April 19, 2026, under partly cloudy skies with light winds, aligning precisely with pre-event forecasts from Poland's Institute of Meteorology and Water Management (IMGW-PIB) projecting around 19°C amid cooler regional air masses. Hourly METAR reports showed peaks near 18–19°C in the afternoon, solidifying trader consensus at 100% implied probability for this outcome as the market nears resolution. While data revisions from official archives are theoretically possible due to quality control checks, they are exceedingly rare for established airport stations, leaving negligible room for challenge absent measurement anomalies. IMGW synoptic summaries reinforce this positioning with no conflicting reports.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Warsaw on April 19?
19°C 99.7%
11°C or below <1%
12°C <1%
13°C <1%
$188,089 Vol.
$188,089 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C or higher
No
19°C 99.7%
11°C or below <1%
12°C <1%
13°C <1%
$188,089 Vol.
$188,089 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Warsaw Chopin Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/pl/warsaw/EPWA.
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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 17, 2026, 12:43 AM ET
Resolution Source
https://www.wunderground.com/history/daily/pl/warsaw/EPWAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Warsaw Chopin Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/pl/warsaw/EPWA.
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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/pl/warsaw/EPWAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Warsaw Chopin Airport meteorological station confirm the highest temperature reached 19°C on April 19, 2026, under partly cloudy skies with light winds, aligning precisely with pre-event forecasts from Poland's Institute of Meteorology and Water Management (IMGW-PIB) projecting around 19°C amid cooler regional air masses. Hourly METAR reports showed peaks near 18–19°C in the afternoon, solidifying trader consensus at 100% implied probability for this outcome as the market nears resolution. While data revisions from official archives are theoretically possible due to quality control checks, they are exceedingly rare for established airport stations, leaving negligible room for challenge absent measurement anomalies. IMGW synoptic summaries reinforce this positioning with no conflicting reports.
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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