Recent forecasts from the Finnish Meteorological Institute and major numerical models show consensus for a maximum of 19–20 °C in Helsinki on 29 August, driven by southerly flow under increasing cloud cover with light rain possible and moderate southeast winds. These conditions, typical for late-summer Baltic Sea influence, suppress daytime heating relative to clearer periods earlier in the month. Current observations near 19–21 °C and stable model runs through 28 August have reinforced trader positioning around the 19–20 °C outcomes, which together exceed 65 % implied probability, while limiting odds for 21 °C or higher. Fresh model updates expected in the next 24–48 hours remain the key variable that could shift these market-implied odds.
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 29?
Highest temperature in Helsinki on August 29?
20°C 40%
19°C 28%
21°C 20%
18°C 8%
NEW
NEW
Aug 29, 2026
14°C or below
<1%
15°C
<1%
16°C
1%
17°C
3%
18°C
8%
19°C
28%
20°C
40%
21°C
19%
22°C
8%
23°C
5%
24°C or higher
1%
20°C 40%
19°C 28%
21°C 20%
18°C 8%
NEW
NEW
Aug 29, 2026
14°C or below
$370 Vol.
<1%
15°C
$0 Vol.
<1%
16°C
$5 Vol.
1%
17°C
$10 Vol.
3%
18°C
$73 Vol.
8%
19°C
$0 Vol.
28%
20°C
$55 Vol.
40%
21°C
$88 Vol.
19%
22°C
$5 Vol.
8%
23°C
$5 Vol.
5%
24°C or higher
$7 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 29 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 forecasts from the Finnish Meteorological Institute and major numerical models show consensus for a maximum of 19–20 °C in Helsinki on 29 August, driven by southerly flow under increasing cloud cover with light rain possible and moderate southeast winds. These conditions, typical for late-summer Baltic Sea influence, suppress daytime heating relative to clearer periods earlier in the month. Current observations near 19–21 °C and stable model runs through 28 August have reinforced trader positioning around the 19–20 °C outcomes, which together exceed 65 % implied probability, while limiting odds for 21 °C or higher. Fresh model updates expected in the next 24–48 hours remain the key variable that could shift these market-implied odds.
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 29 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 27, 2026, 12:58 AM ET
Volume
$619End Date
Aug 29, 2026Market Opened
Aug 27, 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 29 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 forecasts from the Finnish Meteorological Institute and major numerical models show consensus for a maximum of 19–20 °C in Helsinki on 29 August, driven by southerly flow under increasing cloud cover with light rain possible and moderate southeast winds. These conditions, typical for late-summer Baltic Sea influence, suppress daytime heating relative to clearer periods earlier in the month. Current observations near 19–21 °C and stable model runs through 28 August have reinforced trader positioning around the 19–20 °C outcomes, which together exceed 65 % implied probability, while limiting odds for 21 °C or higher. Fresh model updates expected in the next 24–48 hours remain the key variable that could shift these market-implied odds.
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 29 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
$619End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecasts from the Finnish Meteorological Institute and major numerical models show consensus for a maximum of 19–20 °C in Helsinki on 29 August, driven by southerly flow under increasing cloud cover with light rain possible and moderate southeast winds. These conditions, typical for late-summer Baltic Sea influence, suppress daytime heating relative to clearer periods earlier in the month. Current observations near 19–21 °C and stable model runs through 28 August have reinforced trader positioning around the 19–20 °C outcomes, which together exceed 65 % implied probability, while limiting odds for 21 °C or higher. Fresh model updates expected in the next 24–48 hours remain the key variable that could shift these market-implied odds.
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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