Recent forecast models for Helsinki show overnight lows on September 25 clustered around 9–12 °C amid northerly flow and variable cloud cover, creating the tight market split between sub-5 °C and 15 °C-plus outcomes. Persistent mild conditions through mid-September, with only isolated cooler nights earlier in the month, have kept trader focus on whether a transient ridge or incoming moisture will suppress radiative cooling enough to hold minimums above 10 °C or allow clearer skies and lighter winds to push readings lower. Official guidance from the Finnish Meteorological Institute and ensemble spreads highlight modest uncertainty in exact timing of any showers and boundary-layer mixing, directly influencing the 20 % probabilities assigned to intermediate temperature buckets. Updated high-resolution runs expected within the next 24 hours will likely sharpen resolution criteria around the daily minimum.
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 25?
5°C or below 100%
15°C or higher 98%
10°C 40%
11°C 40%
5°C or below
100%
6°C
38%
7°C
38%
8°C
38%
9°C
38%
10°C
40%
11°C
40%
12°C
39%
13°C
39%
14°C
39%
15°C or higher
98%
5°C or below 100%
15°C or higher 98%
10°C 40%
11°C 40%
5°C or below
100%
6°C
38%
7°C
38%
8°C
38%
9°C
38%
10°C
40%
11°C
40%
12°C
39%
13°C
39%
14°C
39%
15°C or higher
98%
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 23, 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 forecast models for Helsinki show overnight lows on September 25 clustered around 9–12 °C amid northerly flow and variable cloud cover, creating the tight market split between sub-5 °C and 15 °C-plus outcomes. Persistent mild conditions through mid-September, with only isolated cooler nights earlier in the month, have kept trader focus on whether a transient ridge or incoming moisture will suppress radiative cooling enough to hold minimums above 10 °C or allow clearer skies and lighter winds to push readings lower. Official guidance from the Finnish Meteorological Institute and ensemble spreads highlight modest uncertainty in exact timing of any showers and boundary-layer mixing, directly influencing the 20 % probabilities assigned to intermediate temperature buckets. Updated high-resolution runs expected within the next 24 hours will likely sharpen resolution criteria around the daily minimum.
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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