Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no consensus on a maximum of 17–19°C in Helsinki on August 31, driven by persistent cloud cover, widespread showers or thunderstorms, and moderate southwesterly winds that limit daytime heating over the Baltic Sea region. These conditions align with the late-August seasonal decline from peak summer warmth and suppress potential for higher readings, positioning the 19°C outcome as the leading market-implied probability. Minor model spread allows a modest chance of 20°C if breaks in clouds occur, while probabilities below 18°C reflect the risk of heavier rain or stronger winds. Updated model runs and official briefings near resolution will refine these ranges.
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 31?
Highest temperature in Helsinki on August 31?
19°C 53%
20°C 26%
18°C 16%
17°C 4%
NEW
NEW
Aug 31, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
1%
17°C
4%
18°C
16%
19°C
53%
20°C
26%
21°C
4%
22°C or higher
1%
19°C 53%
20°C 26%
18°C 16%
17°C 4%
NEW
NEW
Aug 31, 2026
12°C or below
$294 Vol.
<1%
13°C
$294 Vol.
<1%
14°C
$78 Vol.
<1%
15°C
$152 Vol.
<1%
16°C
$108 Vol.
1%
17°C
$621 Vol.
4%
18°C
$1,399 Vol.
16%
19°C
$1,407 Vol.
53%
20°C
$1,176 Vol.
26%
21°C
$1,346 Vol.
4%
22°C or higher
$135 Vol.
1%
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 31 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 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.
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 forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no consensus on a maximum of 17–19°C in Helsinki on August 31, driven by persistent cloud cover, widespread showers or thunderstorms, and moderate southwesterly winds that limit daytime heating over the Baltic Sea region. These conditions align with the late-August seasonal decline from peak summer warmth and suppress potential for higher readings, positioning the 19°C outcome as the leading market-implied probability. Minor model spread allows a modest chance of 20°C if breaks in clouds occur, while probabilities below 18°C reflect the risk of heavier rain or stronger winds. Updated model runs and official briefings near resolution will refine these ranges.
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 31 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 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.
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 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.
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 29, 2026, 12:58 AM ET
Volume
$7,010End Date
Aug 31, 2026Market Opened
Aug 29, 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 31 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 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.
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 forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no consensus on a maximum of 17–19°C in Helsinki on August 31, driven by persistent cloud cover, widespread showers or thunderstorms, and moderate southwesterly winds that limit daytime heating over the Baltic Sea region. These conditions align with the late-August seasonal decline from peak summer warmth and suppress potential for higher readings, positioning the 19°C outcome as the leading market-implied probability. Minor model spread allows a modest chance of 20°C if breaks in clouds occur, while probabilities below 18°C reflect the risk of heavier rain or stronger winds. Updated model runs and official briefings near resolution will refine these ranges.
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 31 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 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.
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 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.
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
$7,010End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no consensus on a maximum of 17–19°C in Helsinki on August 31, driven by persistent cloud cover, widespread showers or thunderstorms, and moderate southwesterly winds that limit daytime heating over the Baltic Sea region. These conditions align with the late-August seasonal decline from peak summer warmth and suppress potential for higher readings, positioning the 19°C outcome as the leading market-implied probability. Minor model spread allows a modest chance of 20°C if breaks in clouds occur, while probabilities below 18°C reflect the risk of heavier rain or stronger winds. Updated model runs and official briefings near resolution will refine these ranges.
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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