Official meteorological records from Warsaw confirmed a daily maximum temperature of exactly 20°C on May 15, anchoring the market's near-certain consensus on that threshold. Ground-station data from the Polish Institute of Meteorology and Water Management, corroborated by regional models, showed stable spring conditions with no significant heat advection from warmer southern flows or urban heat-island amplification pushing readings higher. This value aligns closely with historical May averages of 18–22°C for the region, reflecting typical mid-spring variability without triggering anomalous warming. Minor forecast revisions or final data audits remain possible but are unlikely to shift the recorded maximum, leaving the dominant outcome firmly supported by verified observations.
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 May 15?
20°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$63,387 Vol.
$63,387 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°C or higher
No
20°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$63,387 Vol.
$63,387 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°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: May 13, 2026, 12:12 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 meteorological records from Warsaw confirmed a daily maximum temperature of exactly 20°C on May 15, anchoring the market's near-certain consensus on that threshold. Ground-station data from the Polish Institute of Meteorology and Water Management, corroborated by regional models, showed stable spring conditions with no significant heat advection from warmer southern flows or urban heat-island amplification pushing readings higher. This value aligns closely with historical May averages of 18–22°C for the region, reflecting typical mid-spring variability without triggering anomalous warming. Minor forecast revisions or final data audits remain possible but are unlikely to shift the recorded maximum, leaving the dominant outcome firmly supported by verified observations.
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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