Recent forecasts from European models and the Finnish Meteorological Institute indicate mild overnight conditions for Helsinki on September 8, with southwesterly winds of 7–9 m/s, extensive cloud cover, and dew points near 13–14°C limiting radiative cooling and supporting minimum temperatures clustered around 14–15°C. This setup aligns with the market’s tight distribution favoring 13–14°C outcomes, as southerly flow advects warmer maritime air while light precipitation chances (20–50% in some runs) add minor variability to exact lows. Historical September averages near 10.5°C underscore the current anomaly, driven by persistent high pressure and steering patterns. Traders monitor updated ECMWF and GFS runs plus FMI briefings for any shifts in wind or cloud timing ahead of 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 8?
19°C or higher 91%
9°C or below 79%
10°C 48%
12°C 46%
9°C or below
79%
10°C
48%
11°C
24%
12°C
46%
13°C
34%
14°C
45%
15°C
46%
16°C
46%
17°C
46%
18°C
1%
19°C or higher
91%
19°C or higher 91%
9°C or below 79%
10°C 48%
12°C 46%
9°C or below
79%
10°C
48%
11°C
24%
12°C
46%
13°C
34%
14°C
45%
15°C
46%
16°C
46%
17°C
46%
18°C
1%
19°C or higher
91%
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 6, 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 and the Finnish Meteorological Institute indicate mild overnight conditions for Helsinki on September 8, with southwesterly winds of 7–9 m/s, extensive cloud cover, and dew points near 13–14°C limiting radiative cooling and supporting minimum temperatures clustered around 14–15°C. This setup aligns with the market’s tight distribution favoring 13–14°C outcomes, as southerly flow advects warmer maritime air while light precipitation chances (20–50% in some runs) add minor variability to exact lows. Historical September averages near 10.5°C underscore the current anomaly, driven by persistent high pressure and steering patterns. Traders monitor updated ECMWF and GFS runs plus FMI briefings for any shifts in wind or cloud timing ahead of 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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