Recent official forecasts from the Finnish Meteorological Institute and ensemble models indicate a daytime high of 19–20°C for Helsinki on August 28 under mostly cloudy skies with light southeasterly winds and minimal precipitation. This consensus positions 20°C as the market leader at 44.5% implied probability, followed by 21°C and 19°C, reflecting typical late-August climatology where average highs hover near 18–20°C without strong advection of warmer air masses. Stable high pressure and lack of frontal systems have kept recent model runs consistent, though minor shifts in cloud cover or wind could nudge the exact maximum within the 18–21°C range ahead of final observations.
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?
20°C 45%
21°C 25%
19°C 20%
18°C 5%
NEW
NEW
Aug 28, 2026
15°C or below
2%
16°C
1%
17°C
2%
18°C
5%
19°C
20%
20°C
45%
21°C
25%
22°C
5%
23°C
<1%
24°C
<1%
25°C or higher
<1%
20°C 45%
21°C 25%
19°C 20%
18°C 5%
NEW
NEW
Aug 28, 2026
15°C or below
$5 Vol.
2%
16°C
$148 Vol.
1%
17°C
$90 Vol.
2%
18°C
$0 Vol.
5%
19°C
$773 Vol.
20%
20°C
$346 Vol.
45%
21°C
$3,640 Vol.
25%
22°C
$352 Vol.
5%
23°C
$23 Vol.
<1%
24°C
$115 Vol.
<1%
25°C or higher
$398 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 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 official forecasts from the Finnish Meteorological Institute and ensemble models indicate a daytime high of 19–20°C for Helsinki on August 28 under mostly cloudy skies with light southeasterly winds and minimal precipitation. This consensus positions 20°C as the market leader at 44.5% implied probability, followed by 21°C and 19°C, reflecting typical late-August climatology where average highs hover near 18–20°C without strong advection of warmer air masses. Stable high pressure and lack of frontal systems have kept recent model runs consistent, though minor shifts in cloud cover or wind could nudge the exact maximum within the 18–21°C range ahead of final observations.
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
$5,890End 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 official forecasts from the Finnish Meteorological Institute and ensemble models indicate a daytime high of 19–20°C for Helsinki on August 28 under mostly cloudy skies with light southeasterly winds and minimal precipitation. This consensus positions 20°C as the market leader at 44.5% implied probability, followed by 21°C and 19°C, reflecting typical late-August climatology where average highs hover near 18–20°C without strong advection of warmer air masses. Stable high pressure and lack of frontal systems have kept recent model runs consistent, though minor shifts in cloud cover or wind could nudge the exact maximum within the 18–21°C range ahead of final observations.
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
$5,890End Date
Aug 28, 2026Market Opened
Aug 26, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent official forecasts from the Finnish Meteorological Institute and ensemble models indicate a daytime high of 19–20°C for Helsinki on August 28 under mostly cloudy skies with light southeasterly winds and minimal precipitation. This consensus positions 20°C as the market leader at 44.5% implied probability, followed by 21°C and 19°C, reflecting typical late-August climatology where average highs hover near 18–20°C without strong advection of warmer air masses. Stable high pressure and lack of frontal systems have kept recent model runs consistent, though minor shifts in cloud cover or wind could nudge the exact maximum within the 18–21°C range ahead of final observations.
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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