Current forecasts from models including GFS and FMI consensus point to a Helsinki low near 10–12°C on September 24, driven by persistent northerly flow and increasing cloud cover with periods of light rain that limit radiative cooling overnight. This setup favors outcomes clustered around 8–13°C while keeping 15°C+ probabilities elevated due to model spread on timing of any warmer Atlantic air intrusion. Historical September 24 lows average near 8°C with a typical range of 5–11°C, so recent above-normal warmth and variable wind speeds create the tight market balance between mild and cooler bins. Updated runs tonight and tomorrow morning will refine the minimum temperature threshold for resolution.
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 24?
15°C or higher 72%
5°C or below 50%
6°C 39%
7°C 39%
5°C or below
50%
6°C
39%
7°C
39%
8°C
33%
9°C
22%
10°C
39%
11°C
39%
12°C
17%
13°C
16%
14°C
17%
15°C or higher
72%
15°C or higher 72%
5°C or below 50%
6°C 39%
7°C 39%
5°C or below
50%
6°C
39%
7°C
39%
8°C
33%
9°C
22%
10°C
39%
11°C
39%
12°C
17%
13°C
16%
14°C
17%
15°C or higher
72%
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 22, 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 forecasts from models including GFS and FMI consensus point to a Helsinki low near 10–12°C on September 24, driven by persistent northerly flow and increasing cloud cover with periods of light rain that limit radiative cooling overnight. This setup favors outcomes clustered around 8–13°C while keeping 15°C+ probabilities elevated due to model spread on timing of any warmer Atlantic air intrusion. Historical September 24 lows average near 8°C with a typical range of 5–11°C, so recent above-normal warmth and variable wind speeds create the tight market balance between mild and cooler bins. Updated runs tonight and tomorrow morning will refine the minimum temperature threshold for resolution.
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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