Recent forecast consensus from agencies including the Finnish Meteorological Institute and Met Office indicates a daily maximum near 18°C in Helsinki on September 3, supported by mild southwesterly flow, partly cloudy skies, and light to moderate winds under a stable pressure pattern. This positions 18–19°C as the leading market-implied outcomes, reflecting trader assessment of minor model spread and potential for brief afternoon peaks above the seasonal early-September average of roughly 15–17°C. No major synoptic shifts or extreme events have altered the outlook in the past 48 hours, with official guidance showing consistent guidance and low precipitation risk through the peak heating period.
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 3?
19°C 68%
18°C 25%
20°C 9%
17°C 2%
$12,517 Vol.
$12,517 Vol.
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
2%
18°C
25%
19°C
68%
20°C
9%
21°C
<1%
22°C
<1%
23°C
<1%
24°C or higher
<1%
19°C 68%
18°C 25%
20°C 9%
17°C 2%
$12,517 Vol.
$12,517 Vol.
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
2%
18°C
25%
19°C
68%
20°C
9%
21°C
<1%
22°C
<1%
23°C
<1%
24°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 1, 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...Recent forecast consensus from agencies including the Finnish Meteorological Institute and Met Office indicates a daily maximum near 18°C in Helsinki on September 3, supported by mild southwesterly flow, partly cloudy skies, and light to moderate winds under a stable pressure pattern. This positions 18–19°C as the leading market-implied outcomes, reflecting trader assessment of minor model spread and potential for brief afternoon peaks above the seasonal early-September average of roughly 15–17°C. No major synoptic shifts or extreme events have altered the outlook in the past 48 hours, with official guidance showing consistent guidance and low precipitation risk through the peak heating period.
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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