Recent model consensus from sources like GFS and ECMWF indicates an overnight minimum near 11–13°C for Warsaw on September 12 under stable high pressure around 1022 hPa, light variable winds, and variable cloud cover that limits extreme radiative cooling. This aligns with typical early-September climatology, where average minima hover near 10°C, though persistent clear skies or slight wind shifts could allow brief dips toward single digits while thicker clouds or advection may hold readings above 13°C. Trader sentiment remains closely split between the 17°C-or-higher and 7°C-or-below brackets because small forecast adjustments in boundary-layer conditions can shift the exact low by several degrees before official observations close the market.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Warsaw on September 12?
7°C or below 51%
17°C or higher 49%
11°C 40%
13°C 39%
7°C or below
51%
8°C
17%
9°C
28%
10°C
36%
11°C
31%
12°C
9%
13°C
39%
14°C
39%
15°C
10%
16°C
8%
17°C or higher
49%
7°C or below 51%
17°C or higher 49%
11°C 40%
13°C 39%
7°C or below
51%
8°C
17%
9°C
28%
10°C
36%
11°C
31%
12°C
9%
13°C
39%
14°C
39%
15°C
10%
16°C
8%
17°C or higher
49%
The resolution source for this market will be information from NOAA, specifically the lowest 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 10, 2026, 12:30 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=epwaResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest 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...Recent model consensus from sources like GFS and ECMWF indicates an overnight minimum near 11–13°C for Warsaw on September 12 under stable high pressure around 1022 hPa, light variable winds, and variable cloud cover that limits extreme radiative cooling. This aligns with typical early-September climatology, where average minima hover near 10°C, though persistent clear skies or slight wind shifts could allow brief dips toward single digits while thicker clouds or advection may hold readings above 13°C. Trader sentiment remains closely split between the 17°C-or-higher and 7°C-or-below brackets because small forecast adjustments in boundary-layer conditions can shift the exact low by several degrees before official observations close the market.
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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