Recent forecast model consensus from sources including the Finnish Meteorological Institute and European ensembles points to clear skies and northwesterly flow advecting cooler maritime air into southern Finland, promoting strong radiative cooling overnight on September 6–7 and supporting market-implied odds favoring a minimum near or below 5 °C. This setup deviates from the 1991–2020 September 7 average low of roughly 10.6 °C, with hourly guidance showing temperatures dropping to 5–7 °C under light winds and low dew points. Traders appear to weigh residual model spread in boundary-layer mixing and exact cloud cover against historical cold-night analogs, while awaiting the final observational minimum from Helsinki stations to resolve the contract.
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 7?
3°C 50%
4°C 50%
7°C 50%
5°C 27%
2°C or below
-
3°C
50%
4°C
27%
5°C
27%
6°C
27%
7°C
50%
8°C
<1%
9°C
1%
10°C
1%
11°C
1%
12°C or higher
1%
3°C 50%
4°C 50%
7°C 50%
5°C 27%
2°C or below
-
3°C
50%
4°C
27%
5°C
27%
6°C
27%
7°C
50%
8°C
<1%
9°C
1%
10°C
1%
11°C
1%
12°C or higher
1%
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 5, 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 forecast model consensus from sources including the Finnish Meteorological Institute and European ensembles points to clear skies and northwesterly flow advecting cooler maritime air into southern Finland, promoting strong radiative cooling overnight on September 6–7 and supporting market-implied odds favoring a minimum near or below 5 °C. This setup deviates from the 1991–2020 September 7 average low of roughly 10.6 °C, with hourly guidance showing temperatures dropping to 5–7 °C under light winds and low dew points. Traders appear to weigh residual model spread in boundary-layer mixing and exact cloud cover against historical cold-night analogs, while awaiting the final observational minimum from Helsinki stations to resolve the contract.
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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