Traders are closely split on the lowest temperature in Helsinki today, with market-implied odds favoring 11–12°C amid forecasts showing overnight lows near 13–14°C. Persistent cloud cover and southerly winds from the Finnish Meteorological Institute's latest guidance are limiting radiative cooling, keeping minimums above typical mid-September climatological values around 10°C. Model consensus from sources like GFS and ECMWF indicates stable mild advection rather than clear-sky drops, though slight variations in precipitation timing could nudge the official station reading toward 11°C or 12°C. Resolution depends on the final 24-hour minimum from the Helsinki observation site, with any late-day clearing potentially allowing a brief dip.
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 16?
11°C 48%
10°C 45%
9°C 9%
6°C or below <1%
6°C or below
<1%
7°C
<1%
8°C
<1%
9°C
9%
10°C
45%
11°C
48%
12°C
51%
13°C
<1%
14°C
<1%
15°C
<1%
16°C or higher
<1%
11°C 48%
10°C 45%
9°C 9%
6°C or below <1%
6°C or below
<1%
7°C
<1%
8°C
<1%
9°C
9%
10°C
45%
11°C
48%
12°C
51%
13°C
<1%
14°C
<1%
15°C
<1%
16°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 14, 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...Traders are closely split on the lowest temperature in Helsinki today, with market-implied odds favoring 11–12°C amid forecasts showing overnight lows near 13–14°C. Persistent cloud cover and southerly winds from the Finnish Meteorological Institute's latest guidance are limiting radiative cooling, keeping minimums above typical mid-September climatological values around 10°C. Model consensus from sources like GFS and ECMWF indicates stable mild advection rather than clear-sky drops, though slight variations in precipitation timing could nudge the official station reading toward 11°C or 12°C. Resolution depends on the final 24-hour minimum from the Helsinki observation site, with any late-day clearing potentially allowing a brief dip.
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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