Recent forecast runs from the Finnish Meteorological Institute and supporting models indicate a high near 19–21°C on August 28 under partly cloudy skies and light southerly flow, placing the expected maximum in the middle of the listed ranges. Cloud cover timing, boundary-layer mixing, and Baltic Sea moderation introduce modest uncertainty that can shift the daily peak by 1–2°C either way, while historical late-August climatology centers around 17–18°C. With market-implied odds balanced across outcomes, traders are weighting the narrow spread between model consensus and observed variability in afternoon insolation and low-level moisture. Updated guidance ahead of the date will refine these probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on August 28?
Highest temperature in Helsinki on August 28?
15°C or below 100%
16°C 100%
17°C 100%
18°C 100%
NEW
NEW
Aug 28, 2026
15°C or below
100%
16°C
100%
17°C
100%
18°C
100%
19°C
100%
20°C
100%
21°C
100%
22°C
100%
23°C
100%
24°C
100%
25°C or higher
100%
15°C or below 100%
16°C 100%
17°C 100%
18°C 100%
NEW
NEW
Aug 28, 2026
15°C or below
$0 Vol.
100%
16°C
$0 Vol.
100%
17°C
$0 Vol.
100%
18°C
$0 Vol.
100%
19°C
$0 Vol.
100%
20°C
$0 Vol.
100%
21°C
$0 Vol.
100%
22°C
$0 Vol.
100%
23°C
$0 Vol.
100%
24°C
$0 Vol.
100%
25°C or higher
$0 Vol.
100%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.Recent forecast runs from the Finnish Meteorological Institute and supporting models indicate a high near 19–21°C on August 28 under partly cloudy skies and light southerly flow, placing the expected maximum in the middle of the listed ranges. Cloud cover timing, boundary-layer mixing, and Baltic Sea moderation introduce modest uncertainty that can shift the daily peak by 1–2°C either way, while historical late-August climatology centers around 17–18°C. With market-implied odds balanced across outcomes, traders are weighting the narrow spread between model consensus and observed variability in afternoon insolation and low-level moisture. Updated guidance ahead of the date will refine these probabilities.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.
The resolution source for this market will be information from NOAA, specifically the highest 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, 12:58 AM ET
Volume
$0End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.Recent forecast runs from the Finnish Meteorological Institute and supporting models indicate a high near 19–21°C on August 28 under partly cloudy skies and light southerly flow, placing the expected maximum in the middle of the listed ranges. Cloud cover timing, boundary-layer mixing, and Baltic Sea moderation introduce modest uncertainty that can shift the daily peak by 1–2°C either way, while historical late-August climatology centers around 17–18°C. With market-implied odds balanced across outcomes, traders are weighting the narrow spread between model consensus and observed variability in afternoon insolation and low-level moisture. Updated guidance ahead of the date will refine these probabilities.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 28 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest 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.
The resolution source for this market will be information from NOAA, specifically the highest 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.
Volume
$0End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecast runs from the Finnish Meteorological Institute and supporting models indicate a high near 19–21°C on August 28 under partly cloudy skies and light southerly flow, placing the expected maximum in the middle of the listed ranges. Cloud cover timing, boundary-layer mixing, and Baltic Sea moderation introduce modest uncertainty that can shift the daily peak by 1–2°C either way, while historical late-August climatology centers around 17–18°C. With market-implied odds balanced across outcomes, traders are weighting the narrow spread between model consensus and observed variability in afternoon insolation and low-level moisture. Updated guidance ahead of the date will refine these probabilities.
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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