Official observations from Warsaw Chopin Airport, reported by Poland's Institute of Meteorology and Water Management (IMGW), confirm the highest temperature on April 20, 2026, reached exactly 13°C amid persistent overcast conditions and a cool northerly airflow that suppressed daytime heating. This outcome aligns with IMGW's April 16 weekly forecast projecting 13°C maxima under similar atmospheric patterns, consistent with Warsaw's April climatological norms where average highs hover around 13°C and cloud cover limits solar insolation. Trader consensus at 100% implied probability reflects this verified measurement using standard meteorological protocols at EPWA station. Realistic challenges would require rare post-hoc data revisions from IMGW audits or discrepancies across monitoring sites, though historical precedents show such adjustments affect less than 1% of daily records.
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 20?
13°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$89,083 Vol.
$89,083 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°C or higher
No
13°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$89,083 Vol.
$89,083 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
Yes
14°C
No
15°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 18, 2026, 12:24 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, reported by Poland's Institute of Meteorology and Water Management (IMGW), confirm the highest temperature on April 20, 2026, reached exactly 13°C amid persistent overcast conditions and a cool northerly airflow that suppressed daytime heating. This outcome aligns with IMGW's April 16 weekly forecast projecting 13°C maxima under similar atmospheric patterns, consistent with Warsaw's April climatological norms where average highs hover around 13°C and cloud cover limits solar insolation. Trader consensus at 100% implied probability reflects this verified measurement using standard meteorological protocols at EPWA station. Realistic challenges would require rare post-hoc data revisions from IMGW audits or discrepancies across monitoring sites, though historical precedents show such adjustments affect less than 1% of daily records.
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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