**Forecast consensus from the Finnish Meteorological Institute and supporting models positions 17°C as the leading outcome for Helsinki's highest temperature on September 7, with market-implied odds at 69%.** Multiple runs, including FMI, Foreca, and yr.no, project a daytime maximum of 16–17°C under mostly clear to partly cloudy skies, light southwesterly winds, and high pressure near 1017 hPa. This aligns closely with the September 7 climatological average high of 16.9°C at Helsinki Kaisaniemi. Recent observations on September 6 show stable conditions with afternoon readings near 15–16°C and minimal cloud cover, supporting modest diurnal warming without strong advection or insolation anomalies. Model agreement remains high for this 24-hour window, though minor shifts in wind or cloud timing could favor 16°C (20.5% odds) or 18°C (10.5%). Official observations from FMI stations will resolve the market once finalized.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on September 7?
17°C 70%
16°C 21%
18°C 10%
15°C 3%
$11,865 Vol.
$11,865 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
3%
16°C
21%
17°C
70%
18°C
10%
19°C
2%
20°C
<1%
21°C
<1%
22°C or higher
<1%
17°C 70%
16°C 21%
18°C 10%
15°C 3%
$11,865 Vol.
$11,865 Vol.
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
3%
16°C
21%
17°C
70%
18°C
10%
19°C
2%
20°C
<1%
21°C
<1%
22°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest 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, 12:58 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 highest 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...**Forecast consensus from the Finnish Meteorological Institute and supporting models positions 17°C as the leading outcome for Helsinki's highest temperature on September 7, with market-implied odds at 69%.** Multiple runs, including FMI, Foreca, and yr.no, project a daytime maximum of 16–17°C under mostly clear to partly cloudy skies, light southwesterly winds, and high pressure near 1017 hPa. This aligns closely with the September 7 climatological average high of 16.9°C at Helsinki Kaisaniemi. Recent observations on September 6 show stable conditions with afternoon readings near 15–16°C and minimal cloud cover, supporting modest diurnal warming without strong advection or insolation anomalies. Model agreement remains high for this 24-hour window, though minor shifts in wind or cloud timing could favor 16°C (20.5% odds) or 18°C (10.5%). Official observations from FMI stations will resolve the market once finalized.
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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