Recent forecasts from European models indicate a southwest flow bringing milder maritime air to southern Finland on September 3, yet with increasing cloud cover and light rain that could limit daytime heating and enhance overnight radiative cooling. Current ensemble guidance points to a daily minimum near 9–11 °C, close to the 1991–2020 climatological low of 11.3 °C for the date, but with notable spread allowing for stronger cooling under clearer breaks or a faster-arriving cold front. Trader emphasis on the 8 °C-or-below outcome reflects this uncertainty range and the potential for localized minima if winds slacken after sunset. Updated short-range runs expected from the Finnish Meteorological Institute and ECMWF in the next 24–48 hours will likely narrow the distribution ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Helsinki on September 3?
18°C or higher 47%
15°C 46%
8°C or below 44%
11°C 28%
8°C or below
44%
9°C
24%
10°C
26%
11°C
28%
12°C
27%
13°C
24%
14°C
2%
15°C
46%
16°C
8%
17°C
4%
18°C or higher
47%
18°C or higher 47%
15°C 46%
8°C or below 44%
11°C 28%
8°C or below
44%
9°C
24%
10°C
26%
11°C
28%
12°C
27%
13°C
24%
14°C
2%
15°C
46%
16°C
8%
17°C
4%
18°C or higher
47%
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=efhk
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 1, 2026, 12:31 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
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=efhk
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=efhkResolver
0x69c47De9D...Recent forecasts from European models indicate a southwest flow bringing milder maritime air to southern Finland on September 3, yet with increasing cloud cover and light rain that could limit daytime heating and enhance overnight radiative cooling. Current ensemble guidance points to a daily minimum near 9–11 °C, close to the 1991–2020 climatological low of 11.3 °C for the date, but with notable spread allowing for stronger cooling under clearer breaks or a faster-arriving cold front. Trader emphasis on the 8 °C-or-below outcome reflects this uncertainty range and the potential for localized minima if winds slacken after sunset. Updated short-range runs expected from the Finnish Meteorological Institute and ECMWF in the next 24–48 hours will likely narrow the distribution ahead of market resolution.
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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