Recent forecast guidance from numerical models, including GFS runs, points to a minimum temperature near 10–11°C in Helsinki on September 3, aligning closely with the 1991–2020 climatological average low of 11.3°C for the date. Mild southwesterly flow, limited cloud cover overnight, and dew points around 10–13°C support this range, though localized variations in wind speed or brief radiative cooling under clearer skies could produce brief dips. Trader emphasis on outcomes at or below 8°C reflects model spread and the inherent uncertainty in pinpointing exact overnight minima ahead of final station observations from Helsinki-Vantaa or Kumpula. Updated model cycles and official synoptic reports expected overnight will refine these probabilities before 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?
15°C 48%
18°C or higher 47%
8°C or below 44%
11°C 28%
8°C or below
44%
9°C
27%
10°C
27%
11°C
28%
12°C
26%
13°C
25%
14°C
23%
15°C
48%
16°C
2%
17°C
2%
18°C or higher
47%
15°C 48%
18°C or higher 47%
8°C or below 44%
11°C 28%
8°C or below
44%
9°C
27%
10°C
27%
11°C
28%
12°C
26%
13°C
25%
14°C
23%
15°C
48%
16°C
2%
17°C
2%
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 forecast guidance from numerical models, including GFS runs, points to a minimum temperature near 10–11°C in Helsinki on September 3, aligning closely with the 1991–2020 climatological average low of 11.3°C for the date. Mild southwesterly flow, limited cloud cover overnight, and dew points around 10–13°C support this range, though localized variations in wind speed or brief radiative cooling under clearer skies could produce brief dips. Trader emphasis on outcomes at or below 8°C reflects model spread and the inherent uncertainty in pinpointing exact overnight minima ahead of final station observations from Helsinki-Vantaa or Kumpula. Updated model cycles and official synoptic reports expected overnight will refine these probabilities before 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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