Official meteorological observations from Warsaw stations recorded a daily maximum of 21°C on September 5, 2026, driven by westerly winds of 15–25 km/h, scattered showers, and moderate cloud cover that limited solar heating. This aligns with model consensus from GFS and regional forecasts projecting afternoon peaks near 20–22°C amid seasonal norms of 18–21°C for early September. Trader consensus at 100% for 21°C reflects verified station data and the low likelihood of post-event revisions. Only substantial discrepancies in final Polish Institute of Meteorology reports or unaccounted microclimate variations could shift resolution, though historical patterns show such adjustments are rare for urban maxima.
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 September 5?
21°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$32,458 Vol.
$32,458 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
21°C 100.0%
18°C or below <1%
19°C <1%
20°C <1%
$32,458 Vol.
$32,458 Vol.
18°C or below
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C or higher
No
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=epwa
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 3, 2026, 12:57 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=epwaResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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=epwa
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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=epwaResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official meteorological observations from Warsaw stations recorded a daily maximum of 21°C on September 5, 2026, driven by westerly winds of 15–25 km/h, scattered showers, and moderate cloud cover that limited solar heating. This aligns with model consensus from GFS and regional forecasts projecting afternoon peaks near 20–22°C amid seasonal norms of 18–21°C for early September. Trader consensus at 100% for 21°C reflects verified station data and the low likelihood of post-event revisions. Only substantial discrepancies in final Polish Institute of Meteorology reports or unaccounted microclimate variations could shift resolution, though historical patterns show such adjustments are rare for urban maxima.
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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