Current ensemble forecasts from the Finnish Meteorological Institute, GFS, and other models show Helsinki’s overnight minimum on September 19 centered near 11–12 °C under persistent southwesterly flow, extensive cloud cover, and light rain that suppresses radiative cooling. These conditions align with the market’s heaviest implied probability on 12 °C, followed by 11 °C and 10 °C, while colder outcomes remain discounted absent a stronger high-pressure ridge or northerly advection. Recent model runs have remained stable, with only modest spread in boundary-layer moisture and wind speed; any late shift in steering patterns or clearer skies could still nudge the low a degree lower before resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateLowest temperature in Helsinki on September 19?
12°C 48%
9°C 39%
10°C 39%
11°C 26%
7°C or below
9%
8°C
19%
9°C
39%
10°C
39%
11°C
26%
12°C
48%
13°C
19%
14°C
11%
15°C
7%
16°C
5%
17°C or higher
4%
12°C 48%
9°C 39%
10°C 39%
11°C 26%
7°C or below
9%
8°C
19%
9°C
39%
10°C
39%
11°C
26%
12°C
48%
13°C
19%
14°C
11%
15°C
7%
16°C
5%
17°C or higher
4%
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.
Binuksan ang Market: Sep 17, 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...Current ensemble forecasts from the Finnish Meteorological Institute, GFS, and other models show Helsinki’s overnight minimum on September 19 centered near 11–12 °C under persistent southwesterly flow, extensive cloud cover, and light rain that suppresses radiative cooling. These conditions align with the market’s heaviest implied probability on 12 °C, followed by 11 °C and 10 °C, while colder outcomes remain discounted absent a stronger high-pressure ridge or northerly advection. Recent model runs have remained stable, with only modest spread in boundary-layer moisture and wind speed; any late shift in steering patterns or clearer skies could still nudge the low a degree lower before resolution.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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