Recent forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and global models like GFS indicate Helsinki's overnight low on August 28 will likely range from 11–15°C under high pressure around 1027 hPa, with partly cloudy skies, light variable winds shifting southerly or easterly, and minimal precipitation. This setup promotes moderate radiative cooling overnight but is tempered by Baltic Sea warmth and regional airflow, yielding consensus lows near 13–14°C across sources. Minor model differences in cloud cover and wind speed create the observed spread in market-implied probabilities around 9–14°C, with 13°C edging ahead due to alignment with current ensemble guidance. Historical August minima near 13°C provide additional context, though traders weigh potential revisions from updated model runs.
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 August 28?
8°C 42%
13°C 40%
10°C 30%
14°C 27%
6°C or below
1%
7°C
18%
8°C
42%
9°C
26%
10°C
30%
11°C
25%
12°C
24%
13°C
40%
14°C
27%
15°C
5%
16°C or higher
2%
8°C 42%
13°C 40%
10°C 30%
14°C 27%
6°C or below
1%
7°C
18%
8°C
42%
9°C
26%
10°C
30%
11°C
25%
12°C
24%
13°C
40%
14°C
27%
15°C
5%
16°C or higher
2%
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 26, 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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and global models like GFS indicate Helsinki's overnight low on August 28 will likely range from 11–15°C under high pressure around 1027 hPa, with partly cloudy skies, light variable winds shifting southerly or easterly, and minimal precipitation. This setup promotes moderate radiative cooling overnight but is tempered by Baltic Sea warmth and regional airflow, yielding consensus lows near 13–14°C across sources. Minor model differences in cloud cover and wind speed create the observed spread in market-implied probabilities around 9–14°C, with 13°C edging ahead due to alignment with current ensemble guidance. Historical August minima near 13°C provide additional context, though traders weigh potential revisions from updated model runs.
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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